Seven Keys to Baldpate (1935)

Ronnie Jackson is a lowly baby photographer who secretly fantasizes about being a private detective. When a lovely baroness actually mistakes him for one and asks him to help locate her missing husband, Baron Montay, Ronnie finds himself agreeing. Several days later he is on death row whiling away the hours until his execution by recounting to a group of reporters the bizarre tale of how he ended up there.

An insurance representative is seduced by a dissatisfied housewife into a scheme of insurance fraud and murder that arouses the suspicion of his colleague, a claims investigator.

While watching from her train window, Nikki Collins witnesses a murder in a nearby building. When she alerts the police, they think she has read one too many mystery novels. She then enlists a popular mystery writer to help her solve the crime on her own, but her sleuthing attracts the attentions of suitors and killers.

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

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

Young businessman Thomas Crown is bored and decides to plan a robbery and assigns a professional agent with the right information to the job. However, Crown is soon betrayed yet cannot blow his cover because he’s in love.

When investigative reporter Irwin "Fletch" Fletcher goes undercover to write a piece on the drug trade at a local beach, he's approached by wealthy businessman Alan Stanwyk, who offers him $50,000 to murder him. With sarcastic wit and a knack for disguises, Fletch sets out to uncover Stanwyk's story.

An unemployed drifter, Eric Stanton wanders into a small California town and begins hanging around the local diner. While Eric falls for the lovely waitress Stella, he also begins romancing a quiet and well-to-do woman named June Mills. Since Stella isn't interested in Eric unless he has money, the lovelorn guy comes up with a scheme to win her over, and it involves June. Before long, murder works its way into this passionate love triangle.

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

A Broadway playwright puts murder in his plan to take credit for a student's script.