Beth Ann and Rob throw a housewarming party to introduce themselves to the neighborhood, but something seems to be amiss with neighbors Mary and Ralph. Hijinks ensue and secrets come to light when Simone and Karl have dinner with Amy’s conservative future in-laws. Tensions rise in the throuple after Taylor begins to question the living arrangement and reveals a dark truth about Eli.

Beth Ann is elated when Rob ends his affair, but that feeling is short-lived when Beth Ann learns that everything is not as she thinks. While Simone and Karl work to find common ground in their relationship, conflict ensues as Naomi grows suspicious of Tommy's erratic behavior. Eli, Taylor and Jade try to work out their issues by heading to a polyamory retreat but Eli's relapse with addiction may derail everything.

Beth Ann recruits Sheila to help pull off her faux diagnosis, taking her already far-fetched plan another step too far. As Simone and Tommy arrange their European rendezvous, a revelation may foil their plans. Taylor reaches out to Jade in hopes of helping Eli battle addiction, but his new found riches have Jade only seeing green.

As Beth Ann plots to remove April from Rob's life for good, a surprising confrontation reveals a secret that will shock Beth Ann to her core. Meanwhile, Naomi is reeling with anger and will do anything to protect her son, even if it means destroying Simone and Karl's reputation along the way.

Kill or be killed, that is the question. After learning the shocking truth about her daughter's death, Beth Ann devises a plan for revenge that could alter the course of many lives. As Karl's health worsens, Simone's commitment to their relationship is tested. With Jade out of the picture, Taylor and Eli are focusing on their love story, and are hopeful the past is far behind them. Season finale.