Film Treatment

Two friends Alan and John come back to their apartment after a party. John has a stomach ache so Alan gives him some medicine and they go to sleep. Later that night Alan receives a call and to his surprise, John is on the other end of the phone. He tells Alan that the medicine worked and he feels fine. He also tells Alan that he is taking a walk outside the apartment and that he will be back in 5 minutes. Alan is shocked as someone already seems to be under John’s blanket. As Alan tries to remove the blanket and see who’s underneath, he is attacked by someone or something from underneath the blanket.