Straight Line Crazy is a play written by David Hare. The first production, directed by Nicholas Hytner, opened in previews at the Bridge Theatre in London on 16 March 2022 before officially premiering on 23 March 2022. The play is set in the 1920s through the 1960s in New York City and centres around the life of Robert Moses portrayed by Ralph Fiennes. Fiennes stars as Moses, once a powerful man in New York and the "master builder" of infrastructure from new parks and bridges to over 600 miles of expressways. During his working life, he served on the New York State Council of Parks and was the New York Secretary of State. Though never elected to office, he used a mix of charm and intimidation to manipulate the people and events in his favour including the Governor of New York Al Smith, portrayed in the play by Danny Webb.

Sir David Rippon Hare is an English playwright, screenwriter and theatre director. Best known for his stage work, Hare has also enjoyed great success with films, receiving two Academy Award nominations for Best Adapted Screenplay for writing The Hours in 2002, based on the novel written by Michael Cunningham, and The Reader in 2008, based on the novel of the same name written by Bernhard Schlink.