Aimed at screenwriters, producers, development executives and educators interested in the crime genre, this book provides an invaluable basis for crafting a film story that considers both audience and market expectations without compromising originality. A brief historical overview of the crime genre is presented for context along with an analysis of various crime sub-genres and their key conventions, including: police, detective, film noir, gangster, heist, prison and serial killer. Karen Lee Street focuses on the creative use of these conventions and offers strategies for focusing theme and improving characterisation, story design, structure and dialogue. Paradigms, story patterns and writing exercises are provided to assist the script development process and strategies for revision are discussed along with key questions to consider before approaching creative or financial partners.