In the west of Ireland, there is a mysterious forest that is not on any map, said to trap lost people. John is trying to escape before nightfall, but strange signs warn of a "point of no return. " Meanwhile, immigrant Mina works at a pet store and meets a bird named Darwin. After a night out, Mina gets lost in the forest, where she meets others hiding from creatures called "the Watchers. " They cannot leave due to hallucinations induced by the forest. The group tries to distract themselves, but Mina realizes they are part of a show for the Watchers. She learns of the Professor who built the boundary signs and must accept that escaping is impossible. The group tries to survive, sharing stories and skills to cope with their new reality. They face challenges as they await the next encounter with the mysterious Watchers in the never-ending forest.