Tessa (anxious, brainy, needy) is an ASMRtist. Ben (charming, secure, hotheaded) is a freelance journalist. The couple goes to Philly for a weekend to attend Ben’s high school reunion.They stay at an airbnb where their host is a socially inept, reclusive, perpetually-uncomfortable-in-his-own-body video editor. This is Adam. Ben and Tessa quickly make the apartment their psychosexual playground, adding insult to injury when Ben brings home an old classmate, the easily infatuated Lizzy. Adam becomes an unwilling voyeur to the most private parts of the couple’s life, while Tessa becomes a spy into his strange and unnerving lifestyle. While Ben seeks validation from old classmates, Tessa is left to find her own affection and attention from Adam. When Tessa betrays his trust, Adam brings home Kristin, a vulnerable young woman, in an attempt to reclaim his territory and re-establish dominance.