Koroviev, a police officer who teaches poetry in a brigade of police poets, is in search of a precious Bible annotated by Pierre Maheu, the captain of the St. Elias, a legendary ship. His quest leads him to befriend a young thief who introduces him to a mysterious woman named Coriandre.

Waiting for April is a romantic, epic cop comedy freely inspired by songs and medieval fables collected by storyteller Michel Faubert. Detective Haffigan investigates a mysterious singing bone, a talisman endowed with dangerous powers, and chased after by a coterie of second-rate outlaws. The bone turns out to be in possession of Mithridate, a seductive actor with a gorilla’s right arm. Haffigan expresses romantic interest in the charming comedian, but he rebuffs her, instead setting his sights on Eleonore, a cashier at the Bank of Permanent Fog, who promises to liberate him from the bone’s curse.