On a Sunday morning, a group of young revelers enter a large, vacated apartment. Tired drag queens mix with debauched grannies, drunken vagrants and shy virgins over the course of the morning.

Ablou is a young man prisoner of a dream and a park. He meets strange characters who try to lock him up a little more in this long sleep.

Two men meet in a park: Haldern has on a black balaclava, while Ablou is wearing white underpants. The film is based on choreography by Daniel Larrieu, who was invited to "play with the story board" of Alfred Jarry's book "Haldernablou", with illustrations by Tom de Pékin.