This alluring thriller offers gorgeous scenery and plenty of chills as Ken (Eoin Macken) and Rachel (Anna Skellern) take a much-needed sailing holiday with their sophisticated friend, Marco (Anthony Jabre), but danger soon arrives in the shape of a lovely castaway named Silka (Tereza Srbova). While trying to help Silka, who is stranded on a deserted Mediterranean island, the friends are bewitched and become the targets of terrifying violence.