In 1950s New York, a lonely private detective afflicted with Tourette's Syndrome ventures to solve the murder of his mentor and only friend.

Lionel Essrog is a lonely private detective afflicted with Tourette's Syndrome. He ventures through 1950s New York trying to solve his friend's murder. Armed only with a few clues and the powerful engine of his obsessive mind, Lionel unravels closely guarded secrets that hold the fate of the whole city in the balance.