Based On A True Story, This Week's Guest

Ava and Nathan struggle with parenthood and try to convince Matt to return home; Matt fills in Nathan on the events surrounding Ruby's death, while Ava does her own investigation back at home.

Ava needs to make new friends at the park but ends up getting interrogated by the group. Matt helps Nathan stand up for himself at work.

Ava investigates a crime scene and runs into an old friend. Nathan takes a giant financial risk for a chance at redemption. Ava channels the Lipinski sisters to help her understand more about the Westside Ripper.

Ava and Nathan try to rekindle their relationship by going to a sex party, but Ava's true motives are hidden; Matt is confronted by a fellow addict; Ava begins a new social experiment online.

Nathan plays a redemption match against a lifelong rival. The new serial killer haunting Los Angeles sends Ava a cipher to decode. Matt offers Ava his expertise, claiming he knows how to get into the mind of a murderer.

Reeling from Nathan's public embarrassment, he and Ava try to track down Drew. Matt and Tory plan their wedding ceremony. Matt gives into his dark desires.