Smile Jenny, You're Dead (1974)

When Henry is invited as a guest speaker at a luxury resort spa, he quickly finds himself at the center of another murder. With Maggie at his side, our favorite duo must not only find the killer but be careful they don't become his latest victim.

Holly Parker, the wife of a wealthy diplomat, is compromised by the accidental death of a man who has been romantically pursuing her. She is forced by her mother-in-law to assume a new identity in order to save the reputation of her husband and infant son. She wanders the world, trying to forget her heartbreak with the aid of alcohol and unsavory men. Eventually returning to the city of her downfall, she murders a blackmailer who threatens to expose her past. Amazingly, Holly is represented at her murder trial by her now adult son, who has become a public defender. In the hope of protecting her family, she refuses to reveal her real name and is known to the court as "Madame X".

After two British Secret Intelligence Service agents are murdered at the hands of a cryptic neo-Nazi group known as Phoenix, the suave agent Quiller is sent to Berlin to investigate.

Detective Chief Superintendent Maurice Jobson is forced to remember the very similar disappearance of Clare Kemplay, who was found dead in 1974, and the subsequent imprisonment of local boy Michael Myshkin. Washed-up local solicitor John Piggott becomes convinced of Myshkin's innocence and begins to fight on his behalf, unwittingly providing a catalyst for Jobson to start to right some wrongs.

A thief fresh out of prison, tries to work his way back into the life of his daughter and ex-fiancé. Determined, he is forced to use the skills he has as a gifted locksmith. Things take a tumultuous turn after an unexpected disappearance.

The gruesome death of a prostitute brings suspicion on one of her clients, James Wayland, a brilliant, self-destructive and epileptic heir to a textile fortune. So detectives Braxton and Kennesaw take Wayland in for questioning, thinking they can break the man. But despite his troubles, Wayland is a master of manipulation, and during the interrogation, he begins to turn the tables on the investigators, forcing them to reveal their own sinister sides.

A high-priced call girl is forced to depend on a reluctant private eye when she is stalked by a psychopath.

During a murder hunt game at a country house, to which Hercule Poirot is invited as an "expert", a real murder occurs.

Walker investigates a murder connected with a missing government weapon. In addition, he tries to track down a teen on the run from a crime syndicate.

A private investigator helps a former flame solve the murder of her wealthy grandfather, who lived in a sprawling estate surrounded by his idiosyncratic family.