The film follows Etienne, a 40-year-old car designer, who takes time off from work to study sexual mastery from a Zen master and several prostitutes, in the hopes of having the sexual skill to impress Laure. Laure, a blonde who was introduced to him by his friend Jacques, told Etienne on January 1 that she will not have sex with him until May 27 that year at precisely 9 PM.
| Actor | Role |
|---|---|
 Patrick TimsitÉtienne | Étienne |
 Cécile de FranceLaure | Laure |
 Richard BerryJacques | Jacques |
 Alain ChabatMaître Zen | Maître Zen |
 Jean-Pierre DarroussinMonsieur Hubert | Monsieur Hubert |
 Ludmila MikaëlAlice | Alice |
 Jessica FordeJuliette | Juliette |
 Nadia BarentinMme Ackermann | Mme Ackermann |
| MMax TzwangueMr. Ackermann | Mr. Ackermann |
 Christophe GrundmannDaniel | Daniel |
 Joël BarbouthPépionakis, the waiter (as Joël Joseph Barbouth) | Pépionakis, the waiter (as Joël Joseph Barbouth) |
 Philippe KerjeanGym instructor | Gym instructor |
 Guilaine LondezReal estate agent | Real estate agent |
 Chloé MonsSex-shop seller | Sex-shop seller |
 Pascal LeguennecTaxi driver | Taxi driver |
 Manuela GouraryLulu | Lulu |
 Laura FavaliLola | Lola |
 Coline BerryAlice's secretary | Alice's secretary |