When Richard Chapman hosts his brother's bachelor party, his wife Kristin takes their young daughter to Manhattan for the evening. What she does not expect is bacchanalian drunkenness, her husband sharing a dangerously intimate moment in the guest room, and two women stabbing and killing their Russian bodyguards before driving off into the night. As their life rapidly spirals into nightmare, their home now a crime scene, Richard's investment banking firm puts him on indefinite leave, and Kristin is unsure if she can forgive her husband.
When the bachelor party her husband is hosting goes wrong, Kristin finds her life spiraling into a nightmare of accusations and betrayal while a girl hired to provide entertainment at the party flees for her life from gangsters.