Max Marcin

A mobster's daughter leads her boyfriend from the circus into bootlegging.

The Palmers, an apparently wealthy family, move into the house next door to the Lazarres. However, the Palmers are actually a gang of thieves plotting to rob the Lazarres.

John Nelson, a well-to-do businessman, is escorting a woman he knows as Ethel Barry to the door of her apartment suite when a man steps out of the shadows and angrily demands to know where she has been. The embarrassed Nelson excuses himself and goes to his rooms in the same hotel. The woman rushes into his apartment followed by the man who met her in the hall. The man threatens her with violence and Nelson comes to her defense. In the ensuing fight, the man is knocked out of the window and falls to his death to the pavement many stories down. He is charged with the killing and his only witness that can prove self-defense for him has disappeared, and can not be found.

Robert is found beside the highway with a head injury and amnesia. His amnesia motivates him to become a Physician and the country's leading criminal psychologist.

A criminal psychologist tries to clear his patient of arson charges.

At a lavish house party, bank president Robert Andrews stages his own “murder” to distract a visiting bank examiner from uncovering a shortage, setting off a whodunit where nearly everyone has a motive. The investigation spirals until Andrews is found alive and admits the frame-up—after the deficit is repaid. A silent black-and-white Universal mystery-melodrama-comedy directed by Herbert Blaché; long thought lost, a print resurfaced in 2017.

The Crime Doctor gets involved in the case of the poisoning of a wealthy industrialist.

While on vacation, a criminal psychologist investigates a murder during a typhoid epidemic.