The 13th Letter (1951)

An ex-fireman with PTSD goes on the run when accused of a crime he doesn't even remember committing, leading him down a rabbit hole of conspiracy to the highest degree.

Private eye Phillip Marlowe wants to get out of the detective racket and into crime writing. But when he's called to the office of editor Adrienne Fromsett, it's not to talk about his story ideas — she wants him to locate the missing wife of her boss, Mr. Kingsby. The assignment quickly becomes complicated when bodies start turning up.

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

A falsely convicted man's wife, Catherine, and an alcoholic composer and pianist, Martin, team up in an attempt to clear her husband of the murder of a blonde singer, who is Martin's wife.

After a former model is drowned in her bathtub, Detective James Halloran and Lieutenant Dan Muldoon attempt to piece together her murder.

Broke and depressed, Ray is mistaken for a dangerous hitman and given an envelope of cash. Along with his P.I. friend Skip, he must escape the actual hitman to make it out of LaRoy alive.

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

Alec Graham is sentenced to death for the murder of his girlfriend Jennie, with whom he spent a weekend at the English country home of the parents of his friend Brian Stanford. Alec’s father, David Graham, a not-so-successful writer and alcoholic who has neglected his son in the past, flies in from Canada to visit his son on death row. David then goes on a quest to try and clear his son’s name while battling “the bottle.”

A mystery outside of San Francisco brings together small-town sheriff Paul Del Moral, Japanese author Aki Akahori, and a traveler from Reno who soon disappears, leaving behind his suitcase and a trail of questions.

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.