Echo of Diana (1963)

Jane Marple solves the mystery when a local woman is poisoned and a visiting movie star seems to have been the intended victim.

A routine investigation of a shocking murder takes a bizarre twist when the killer contacts the reporter and appoints him his personal spokesman. As the killer's calls and clues increase, the reporter is lured into a deadly trap.

A troubled young woman becomes obsessed with her mysterious new neighbor, who bears a striking resemblance to the girl's dead mother.

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

At the insistence of Ruth Van Rydock, an old schoolfriend who is convinced that there is something wrong, Miss Marple agrees to visit 'Stonygates', the country house of Ruth's sister.

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

Federal agent Alexandra Barnes believes that Catherine Petersen is a serial killer who marries rich men and then murders them for their money. But since Catherine is seemingly a master of disguise and has multiple identities, Alexandra can't prove anything with conventional detective work. With no other option, she goes undercover, pursuing the same man as Catherine, and hoping that Catherine will slip up and reveal her true identity.

Former prosecutor-turned-therapist Hailey Dean is a powerhouse, Mensa bright, and acutely observant. During a tragic week, one of her patients loses her parents to separate fatal accidents along with millions of dollars that has seemingly vanished into thin air. When the police begin to question Hailey's patient, shes knows she is innocent. But who is the culprit?

Hannah Swensen is thrilled when she is chosen as a guest for the first Eden Lake Dessert Bake-Off, but when fellow judge, Coach Bishop is found murdered, Hannah once again takes it upon herself to find the killer.

Young socialite Iris Carr befriends an older woman while traveling solo by train. When Iris wakes from a nap, the woman is gone and other passengers claim she never existed.