Sergei Frolov was a successful stuntman, and Natasha Zavyalova was a famous actress. But one day their lives changed forever - they were transported to another world. Into a world more terrible than which it is difficult to imagine... “Is this hell?” – Sergei asks with horror when he sees how a brutal warrior cuts off the head of one of the prisoners with a cleaver. “No, this is just the world behind the wall!” - his friend sadly answers him, who in a few hours will be subjected to sophisticated torture. This is the world behind the wall, where cruelty, greed and depravity reign. Here people are used as bait to catch giant fish. Here a woman is just a “toy” for sexual pleasure. Here a person can easily be hanged, quartered, impaled... and even eaten. Sergei and Natasha strive to survive at any cost, trying to escape from the walls of this hell...