15-year-old Margaux finds out about her attractiveness and the early stages of sexuality, all in the same time as she tries to escape from a monstrous creature stalking her daily.

One night, Samuel discovers that the light bulb in his bedroom ceiling has switched itself on. His neighbours are fascinated - it's a miracle.

Samuel is sensitive. Samuel is lonely. Samuel only lives for hardcore punk music and underground horror movies. Samuel suffers from being misunderstood. Samuel often recalls his ex-girlfriend, Eva. Samuel, in painful moments, also speaks to the Devil.