In December 1935, Hollywood comedian and café owner Thelma Todd left a glittering night at the Trocadero, was driven home to the Pacific Coast Highway, and then simply disappeared into the dark. Two days later she was found slumped behind the wheel of her car in a hilltop garage, dead from carbon monoxide, in the same party dress and heels she’d worn Saturday night, no clear injuries in the official report, no suicide note, and a timeline that immediately made police call it an accidental death while almost everyone else smelled something far more sinister.

Rumors of a staged scene, mob threats, jealous lovers, and a director who may have locked her out after a fight have kept her case alive for nearly a century, turning Thelma Todd’s silent, lonely death into one of Old Hollywood’s most enduring “did-someone-get-away-with-murder?” stories.