Recommendations
Senior Film Conservator

Exploring the cinematic excellence in Il trattato scomparso is a journey into Italy cinema, its influence on Mystery cinema remains a vital reference point for fans today. Below, we've gathered a list of films that every fan of Mario Bonnard's work should explore.
With Mario Bonnard at the helm, Il trattato scomparso became to blend thematic complexity with stunning visual execution.
Il trattato scomparso was a significant production in Italy, showcasing the immense talent of Alexandre Mihalesco, Mino Doro, Memo Benassi. It continues to be a top recommendation for anyone studying Mystery history.
Based on the unique cinematic excellence of Il trattato scomparso, our vault has identified these titles as the most compelling follow-up experiences for fans of Mystery cinema:
Dir: Unknown Director
A fascinating piece of cinema that shares thematic elements.
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Dir: Marcel Perez
Ralph Barr refuses to lend more money to Trent, who has been rejected by Judith Reynard and is now engaged to Barr. When Trent insults Judith, Barr threatens to kill him. Then Trent calls on Barr, threatening to kill himself and make it appear that Barr killed him if Barr will not lend him the money. Later it seems that Trent has committed suicide and Barr is suspected of the murder, but disappears. A series of complications follows which make it appear that Barr did kill Trent, but it turns out that he was killed from a shot behind the portieres. Another murder takes place and more mystery develops. Finally it is determined that Barr is not guilty, and Judith's loyalty saves him.
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Dir: Ernest C. Warde
Ambitious but struggling attorney John Trask, is puzzled when Christine Lloyd, a mysterious young woman, entrusts him with $30,000 to purchase a necklace that will be delivered to his office the next day. The necklace was stolen by Christine's brother Sydney to pay his gambling debts and Christine, attempting to shield her brother, hires Trask to retrieve it. Trask accepts, and after hiding the money behind a painting, leaves his office for the night. Later that evening, building janitor Annester Norton discovers the money while on his rounds and absconds with it. The next day Aline Norton, the janitor's daughter and an unwitting pawn of the gamblers, appears at Trask's office with the necklace. Discovering that the money is missing, Trask goes to the casino to investigate and miraculously wins $30,000 with which he purchases the necklace. After placing the necklace in Lloyd's hands, Trask is shocked to discover that it is a fake. Entering the gambler's den, Trask retrieves the real necklace, which he restores to its rightful owner. Norton, repenting his theft, returns the money and Trask realizes that he loves the janitor's daughter.
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Dir: Frank Lloyd
Laura Bruce is married to John Bruce, police commissioner. She discovers her husband is enjoying a drunken revel with another woman, and vows she will obtain a divorce. After doing so she weds Paul Ramsey. His employer, Dick Turner, a libertine, offers his a responsible position in the west, and she faces a long separation. Ramsey later learns that Turner is interested in his wife and engages a man to protect her, who happens to be her former husband. She finds this out, but does not know he is bent on vengeance. She is inveigled to go to Turner's apartment, where she meets Turner's former "flame." One of them leaves the apartment which is "Room 13." Returning from the West, Ramsey is taken to an adjoining room by Bruce, and listens to a conversation in "Room 13" between a man and a woman. He is convinced it is his wife's voice. Maddened he rushes to the room and batters down the door. He confronts Turner and shoots him. At the trial Ramsey will go free if his wife confesses she was in the room She does and he is acquitted. A reconciliation follows. - Moving Picture World 1920
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Dir: Tom Collins
When the body of Wall Street broker Norman Temple is found dead in his office, the police arrest contractor James Borden for the crime on the testimony of Temple's secretary that Borden had threatened her employer over an unpaid note. Also under suspicion is Temple's Japanese valet, who quarreled with his employer the day before the murder. Tex, a detective, enters the case, following his own leads which prove the valet innocent. Tex finally deduces that Minkin, one of Temple's clerks, shot his employer when he interrupted the clerk robbing his safe. With Tex's revelation, Minkin's room is searched, the stolen bonds found and Borden is freed.
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Dir: Thomas R. Mills
Returning from the war front, Captain Phoebe Plunkett accepts an assignment to apprehend jewel smugglers in pursuit of the Sultana diamond. On his mission, he meets Patricia Melton, who introduces herself as a French Secret Service agent also in search of the diamond. Plunkett is in love with Olga Karakoff, daughter of a wealthy jeweler, and he soon comes to suspect that Olga's father is in league with the smugglers. However, Patricia is the true impostor, and after she discovers that the jewel is encased in a locket worn around Olga's neck, she captures Olga and the diamond. Plunkett comes to the rescue and wins both Olga and a large reward for recovering the jewel.
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Dir: Unknown Director
The story is that of two clever crooks who are operating at a fashionable seaside resort, with the help of a highly trained and uncannily intelligent chimpanzee. Valuable jewels are constantly disappearing and the detectives are unable to obtain a clue. Finally, after an especially daring robbery, a clue is found that leads to the discovery of the thieves. The simian leads the detectives a chase that calls for some acrobatic stunts on the part of the chasers. The end of this is the capture of the chimpanzee, recovery of the jewels and the arrest of the crooks.
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Dir: Dell Henderson
A young man doubles as a butler and an amateur detective.
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Dir: Tom Collins
Tex, a famous detective, recounts the story of how he went into the crime business: While visiting his old friend, Jack Nelson, a dispute breaks out between Nelson and his butler. Later that night, Nelson is murdered, and the next morning the murder weapon, a knife, is discovered next to the body. Edna, the victim's wife, seizes the knife, and Tex, fearing that she is about to kill herself, throws the weapon out the window. Interpreting Tex's actions as incriminating, the police arrest him, and he is sentenced to prison. Two years later, a fire breaks out at the penitentiary, and Tex's bravery in saving the warden's wife and child wins him a pardon. Determining to solve Nelson's murder, Tex searches for the butler but discovers him to be innocent. Summoned to Edna's deathbed, Tex hears her confess to the crime, thus causing him to devote his life to solving crimes and saving innocents from being convicted on circumstantial evidence.
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Analysis relative to Il trattato scomparso
| Film Title | Atmosphere | Complexity | Similarity |
|---|---|---|---|
| The Kalda Ruby | Surreal | Abstract | 86% Match |
| The Way Women Love | Tense | Linear | 93% Match |
| $30,000 | Gritty | Layered | 97% Match |
| The Woman in Room 13 | Ethereal | Abstract | 91% Match |
| The Wall Street Mystery | Tense | Linear | 90% Match |
This guide was algorithmically generated using the cinematic metadata of Mario Bonnard's archive. Last updated: 6/25/2026.
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