A young man likes his deceased sister's boyfriend. He torments him by sending strangers uninvited to his apartment for gay hookups. Eventually the older man rescues the young man from a sex party, and they are thrown together to navigate their new relationship - eventually aboard a cruise ship. The movie becomes a movie-within-a-movie by the end.

A celebrity model couple are invited on a luxury cruise for the uber-rich, helmed by an unhinged, alcoholic captain. What first appears Instagrammable ends catastrophically, leaving the survivors stranded on a desert island in a struggle of hierarchy.