After graduating high school, Julia and her friends head to Croatia for a celebratory getaway. Their joyful escape quickly turns into a nightmare when a mysterious masked assailant starts eliminating them one by one. As the group grapples with fear and betrayal, they must uncover the killer's identity before it's too late. Tensions rise and secrets unravel, transforming their dream vacation into a desperate fight for survival. With each passing hour, the stakes grow higher as they struggle to stay alive amidst the chaos of their once-festive celebration.