Troubled Waters (1936)

Not even the joys of parenthood can stop married sleuths Nick and Nora Charles from investigating a murder on a Long Island estate.

Society sleuths Nick and Nora Charles investigate a murder in a jazz club.

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.

High society sleuths Nick and Nora Charles run into a variety of shady characters while investigating a race-track murder.

Fed up with her small-town marriage, a woman goes after the big time and gets mixed up with the mob.

Aurora Teagarden and her boyfriend Martin are thrilled when they get an unexpected visit from his niece and her new baby. Their excitement is short lived when his niece disappears and the baby is left behind. Once again, Aurora finds herself drawn into a deadly investigation as she risks it all to help Martin reunite with his family.

On a trip to visit his parents, detective Nick Charles gets mixed up in a murder investigation.

Miss Marple believes she's seen a murder in a passing-by train, yet when the police find no evidence she decides to investigate it on her own.

Nancy Drew, a smart high schooler with a penchant for keen observation and deduction, stumbles upon the haunting of a local home. A bit of an outsider struggling to fit into her new surroundings, Nancy and her pals set out to solve the mystery, make new friends, and establish their place in the community

Jenn buys an old reel-to-reel recorder at a garage sale only to find that it includes the sound of a man pleading for his life. When the former owner of the recorder, a retired therapist, is found murdered in a patient’s apartment, Jenn’s investigation leads to other patients whose love lives are more entangled than she was first led to believe.