Following their arrival at the secluded summer house, the companions find themselves entangled in growing suspicions as the school doctor's hidden motives come to light. The sudden death of one member shatters the fragile peace, leaving the survivors to question who can be trusted amid the confusion. As news of escaped convicts reaches them and the bridge collapses, cutting off all escape, the group must confront the terrifying reality of their trapped situation and the perils that lie ahead.