A young couple, Jayson and Chloe, host a costume party where guests are encouraged to dress in somewhat naughty costumes.
The couple, dressed in an oversized trench coat to appear as a two-headed person, secretly undress each other under the coat throughout the night.
As the party goes on, they discard their garments in different places around the house, eventually becoming completely naked under the coat without being caught.
The thrill of the risk and the intimacy of their shared secret heightens their arousal, leading to a passionate encounter in the midst of their party.