Lindsay turns the house into a crime scene for her murder mystery themed birthday, Paige is put in an uncomfortable position as tension between Hannah and Amanda escalates over Hannah's involvement with Luke, who is still hung up on an ex. Meanwhile, Lindsay is over-the-moon excited when new beau Stephen takes the relationship to a new level which pushes Carl even closer to the edge, but Jules surprisingly swoops in to comfort him.

Paige and Amanda confront Hannah about her steamy night that leaves them blindsided. Carl and Jules bond over their summer of relationship mishaps, while a new rumor about Carl and Danielle spreads through the house. Meanwhile, while defending Hannah's hookup, Lindsay's harsh opinion puts her in Paige's sights. Finally, as the end of the summer nears, barbs are exchanged at the first-ever house roast, but not everybody can take the heat.