Alexis Dziena, Kuno Becker and Eliza Dushku are also starring in the story, about a couple with problems in the bedroom who seek solace from a therapist. The shrink prescribes group sex as a cure-all, Daily Variety reported Thursday.
"I read a lot of material and loved this script," Culkin told Daily Variety. "It's really about the pressure that leads them to experiment, the anticipation leading up to the event and then the fallout."
Celebrity Breakups and divorces of 2014 [PHOTOS]