Catherine House, a boarding house for girls, is a place with a tragic history, dark secrets and strict rules. But seventeen-year-old Sabina knows from her mother’s stories that she will be safe here. Having escaped from home from her stepfather and stepsisters, who turned her life into a real nightmare, the girl goes to Catherine House to start all over again. Sabina almost manages to forget her old life, but soon she witnesses strange and mystical events. The girl understands that being in the boarding house is dangerous, but for some inexplicable reason the inhabitants cannot leave this place. What's really going on here? Sabina will have to uncover this secret in order to escape the captivity of the impending horror.