A french dance troupe, staying for a long weekend in some sort of school building, decide to party after rehearsal, while a wintry blizzard rages outside. Someone spikes the punch, and all hell breaks loose.

The dance scenes are engaging, the visuals hypnotic, the performances are somehow real and completely over the top, and the chaos and carnage intense and memorable. Long, drawn out tracking shots, one of which lasts for 40+ minutes, follow the dancers as the drugs take hold and any hint of humanity falls by the wayside.

Awful, intense, nightmarish film that I would never recommend to anyone, and would probably never watch again, but was so insanely good. Makes me want to take more acid, but also never take it again...

Be warned, not for the feint of heart, the most intense film I have seen in a long, long time.