Dear Detective (1979)

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.

Travelling on the 4.50 from Paddington, Mrs McGillicuddy witnesses a murder on a passing train - but where is the body?

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

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.

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

As a police officer investigates the gruesome murder of her colleague, she discovers that a mysterious supernatural force is behind it.

A law student's theory about the recent deaths of two Supreme Court justices embroils her in a far-reaching web of murder, corruption, and greed.

Rookie cop Megan Turner orders a burglar to drop his gun. He whirls to shoot. Too late. Turner fires, killing him instantly. When someone lifts the assailant's gun from the crime scene, the police hold Turner accountable for killing an unarmed man. That same someone carves Turner's name into the bullets and uses them in a series of murders. Turner teams up with detective Nick Mann to clear her name and catch the killer. But she is drawn into a deadly game of wits with a psychopath who's always one step ahead… and much closer than she thinks!

Private eye Philip Marlowe is hired by ex-con Moose Malloy to find his girlfriend, a former lounge dancer. While also investigating the murder of a client and the theft of a jade necklace, Marlowe becomes entangled with seductress Helen Grayle and discovers a web of dark secrets that are better left hidden.

Police detective Joe Leland investigates the murder of a gay man.