Beholder

No one survived the party at the penthouse. Except Athan. Athanasios "Athan" Bakirtzis has made it far in life relying on his charm and good looks, even securing an invitation to a mysterious penthouse soiree for New York City's artsy elite. But when he sneaks off to the bathroom, he hears a slam, followed by a scream. Athan peers outside, only to be pushed back in by a boy his age. The boy gravely tells him not to open the door, then closes Athan in.