Sarah Buehler

Howard and Raj (series star Kunal Nayyar) visit a Goth nightclub to pick up women, while Sheldon attempts to build a better Penny using chocolate-based behavior modification.

New recruit Luke Alvez helps the team capture a killer who escaped from prison with 12 other convicts.

Mona returns to Rosewood in a very fragile state as she must answer to the police for faking her death. Matters only get worse when she is confronted about Lesli's (recurring guest star ELIZABETH McLAUGHLIN – The Clique) inadvertent involvement in Mona's plot. Hanna is determined to help Mona out, not only to reassure her she is safe from Alison but also to try and repair Mona's friendship with Lesli. Emily tries to help Sara (recurring guest star DRE DAVIS) with her troubled home life by encouraging her to explore the possibility of emancipation. Spencer, on the other hand, finds help from someone from her past. Meanwhile, Alison grows closer to Lorenzo (recurring guest star TRAVIS WINFREY) as she looks for support outside of her family.

A man calls Lilly to confess he murdered his grandmother 14 years ago and buried her in the basement of his former home.

Don and the team investigate the theft of scratch-off lottery tickets.