detective story

US /dɪˈtek.tɪv ˌstɔːr.i/
UK /dɪˈtek.tɪv ˌstɔːr.i/
"detective story" picture
1.

a story about a crime and a detective who tries to solve it

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She loves reading classic detective stories by Agatha Christie.
The new film is a thrilling detective story set in the 1940s.