Centers on a mother-daughter relationship that spirals out of control following a shocking revelation. During a thunderstorm, Anna shows up unannounced at the student apartment of her daughter Alice and reveals that their entire family history rests on a lie she told her. Anna claims to have made a pact with a mysterious stranger to save Alice’s leg after an accident 20 years earlier. That pact has triggered a domino effect causing terrible events over the years. Only Alice can help to put everything right. But at what price?

In the past few days Rome has been the scene of a singular event: when it rains, the manholes exhale a dense steam whose origin and composition is unknown. No one can imagine that whoever breathes in the mysterious substance will have to deal with what he/she represses, their darkest instincts, their anger. Not even the Morel family.

Five carpoolers travel in a motorhome to reach a common destination. Night falls, and to avoid a dead animal carcass, they crash into a tree. When they come to their senses, they find themselves in the middle of nowhere. The road they were traveling on has disappeared and there is only a dense, impenetrable forest and a wooden house in the middle of a clearing, which they discover is the home of a spine-chilling cult.