1939, Los Angeles. Lillian Frost is shocked when her friend, glamorous costume designer Edith Head, hands her the script to a new film that's about to start shooting. Streetlight Story is based on a true crime: the California Republic bank robbery of 1936. Lillian's beau, LAPD detective Gene Morrow, was one of the officers on the case; his partner, Teddy, was tragically shot dead.

It seems the scriptwriter has put Gene at the centre of a scandal, twisting fact with fiction - or has he? With Gene reluctant to talk about the case, the movie quickly becoming the hottest ticket in town, a suspicious death on the Paramount studio lot and the police reopening the investigation into Teddy's death, Lillian is determined to find answers. Can Lillian and Edith uncover the truth of what happened that fateful day and clear Gene's name?