Sometimes a place that looks like heaven can turn out to be real hell. A company of three guys and two girls goes to the Irish Sea coast. A picturesque deserted shore, silence and a feeling of complete safety. It is impossible to imagine that this heavenly place hides secrets about human sacrifice. But when young people find an ancient burial place nearby and take away a strange object, the terrible events of the past are intertwined with reality. Something sinister and deadly begins to pursue them, and not everyone manages to get out of the trap. But only one of them is destined to tell the truth about what really happened.