Detective films are a genre of cinema that focuses on the investigation of a crime, often featuring a detective as the main character. These films typically involve a mystery that needs to be solved, with the detective gathering clues, interviewing suspects, and piecing together evidence. The narrative often builds suspense as the audience tries to solve the mystery alongside the detective. Common themes in detective films include betrayal, deception, and the quest for justice. Iconic characters, such as Sherlock Holmes and Hercule Poirot, have become synonymous with the genre. Detective films can range from serious dramas to light-hearted comedies, appealing to a wide audience.