Vile

Four friends on a camping trip are drugged and kidnapped by a mysterious stranger. They wake up in a locked house with several other strangers, and are forced to inflict physical harm on each other in order to escape. The group must fill a jar with a chemical produced by their brains when in pain, but if they fail, their brains will be injected with a deadly poison. As they turn on each other in desperation, they discover that their captor has a sinister motive and that they are not the only ones in danger. Will they be able to escape, or will they succumb to the sick game of torture and pain?

You can stream Vile on: Apple TV Store

Some movies that have similar genres and were produced around the same time as Vile include The Thinning, The Visit, Creep, Into the Grizzly Maze, Sinister, Evil Nanny.