You'll need to be under the influence of something to enjoy

Rating: 3/10 (22 March 2019)

Simply a waste of time. I generally don't mind slow-burns or potboilers, but this movie goes absolutely nowhere. Much of the problem is the large cast involved (20+) and but none of them are actually captivating to care.
The film starts off with each dancer's "interview" where they discuss various life goals which goes on forever since they have to go through everybody. Then they break into a remarkable uncut extended ensemble dance routine which is the absolute highlight of the movie and worth 1 solid star.
Then they sit and talk. And chat. And discuss. And gossip. And banter. And gab. And confer. And parley. And argue. And converse. And babble. And spout. And prattle. And jabber. And vent. And whine. And cluck. And yak. And yap. And yammer. And yarn. For over a brain-mushingly half-hour!
I should've followed my instincts and just left. The supposed upcoming "climax" was an empty promise; you would see better drug trips by drawing circles on paper.
After another, less spectacular dance-off, people realize they've been drugged and a brief confrontation while trying to figure out who spiked the punch ensues. For the rest of the time, everyone is either wandering around aimlessly or continuing to dance (which the camera spends an obnoxious amount of time focusing on). There's some interpersonal relationship drama that pokes its head out once in a while (earning a couple more points) but nothing worth sitting around for.
Don't be fooled by the title or tagline of "Horror", there is nothing scary, suspenseful, or rewarding. Violence is minuscule and tame. Nothing gets resolved in the end because there was nothing put forth in the first place. Go outside and stare at the sun instead.