whodunit

/huˈdʌnɪt/
noun
  1. A story, movie, or play about a crime, usually a murder, where the identity of the person who committed it is not revealed until the end.
    • She wrote a whodunit set in a small English village.
    • I love reading a good whodunit on a rainy weekend.
    • The movie is a classic whodunit with many surprising twists.
Synonyms
What does "whodunit" mean? | whatsthatwordmean | whatsthatwordmean