In silhouette against the wall of a living room, one figure stabs another to death. A bloody knife falls to the floor at a child's feet.

A widow named Lisa (Ida Galli) inherits a small fortune when her husband dies in a freak jet crash.

An unknown individual breaks into the Terzi Medical Institute but apparently takes nothing.

Sam Dalmas is an American writer vacationing in Rome with his English model girlfriend Julia.

"Mr. Bild" is a reporter with a drinking problem who is assigned to investigate an assault in a tunnel.

Detective Ulisse Moretti (von Sydow) is investigating a series of murders in Turin in 1983, known as The Dwarf Murders.

At the Arts for the Living Center in New York, Candice Norman (Olga Karlatos) oversees the latest dance routine choreographed by Margie (Geretta Marie Fields).

A mysterious stranger strangles a young girl in a field, and the murder goes unsolved.

Roberto Tobias (Michael Brandon) is being followed by a suspicious figure.

A beautiful French stripper named Nicole (Susan Scott) learns that her father was stabbed to death on a train, and she is questioned by the police about some missing diamonds.

A decomposed human hand is found in New York City. It is identified by the police as belonging to Anne Lynne, a local model.

A serial killer is on the loose, murdering certain women around the city.

A convict named Malcolm Rivers awaits execution for several vicious murders that took place at an apartment building.

After a fashion model dies while undergoing an illegal abortion, the attending doctor moves her body back to her home, staging her death to remove any trace of his involvement.

Maria is interrupted during a massage by her angry husband, Paolo. He has proof she has been unfaithful to him, though she denies it.

At night in her bayside mansion, wheelchair-bound Countess Federica Donati is attacked and strangled to death by her husband Filippo Donati.

In the small Southern Italian village of Accendura, three local boys, Bruno, Michele, and Tonino are engaged in mischief and other activities.

Charles Lattimore, an English Professor played by Brosnan, gives his class an assignment to plot a murder, but after a student and someone else dies, he becomes the prime suspect in a murder investigation.

Carol Hammond (Florinda Bolkan) is the daughter of a wealthy lawyer and politician named Edmund Brighton (Leo Genn).

A maniac killer in red rain coat is killing off American tourists on a tour bus by gouging out their eyeballs.