Whodunnit vs. Whodunit — What's the Difference?

A story dealing with a crime and its solution; a detective story.

A whodunit or whodunnit (a colloquial elision of "Who [has] done it?") is a complex, plot-driven variety of a detective story in which the puzzle regarding who committed the crime is the main focus. The reader or viewer is provided with the clues from which the identity of the perpetrator may be deduced before the story provides the revelation itself at its climax.

(British spelling) whodunit

A story dealing with a crime and its solution; a detective story.

A novel or drama concerning a crime (usually a murder) in which a detective follows clues to determine the perpetrator.

A story about a crime (usually murder) presented as a novel or play or movie