電影
Several yo ung coupl es travel to a private island f or a myste rious traini ng retreat tha t promis es to str engthen t heir re lationship . However, during the Retr eat, the heroe s encount er an a ncient de mon - a Succubus. This monste r feeds o n the life en ergy of people, tak ing on so meone else 's appe arance and provoking vict ims to show t he worst qua lities and do terri ble thi ngs.！