CHIN's

Leonard volunteers to sign for a package in an attempt to make a good impression on Penny, but when he enlists Sheldon for help, his attempt at chivalry goes terribly awry.

Chloe and Lucifer look into a murder on the set of a reality show. Father Kinley presses forward with a plan. Amenadiel reconsiders his idea of home.

Jules has difficulty coping when Travis gets ready to leave for college; Andy forms an elaborate plan to deceive Ellie.

Four days after the big break-up, Eric locks himself in his room ignoring Red and Kitty's pleas for him to come out and talk about it. Meanwhile, the gang goes to Funland without Eric, and Kelso gets lost.

After Lucifer removes his wings yet again, Linda becomes concerned that he is too focused on tracking down the Sinnerman and neglecting his own well-being. Tensions continue to rise between Lucifer and Chloe, but they realize they must put their differences aside to solve a case in which Lucifer takes a sudden interest. Once Detective Pierce's past is revealed though, everyone realizes that the Sinnerman is much more dangerous than they thought.

When Lucifer’s mother, Charlotte, turns up at the scene of a grizzly murder pleading innocence, Lucifer is hesitant to believe her tale. Not wanting to leave her on her own, he instructs Maze to babysit her – and not to torture her, allowing him to investigate the case with Chloe.

When a movie star's son is killed after being chased by the paparazzi, Chloe takes a deep look into the case with a little help from Lucifer. Meanwhile, Maze and Amenadiel continue to encourage Lucifer to go back to hell.

As punishment for being "dope-heads", Red gives Eric and Hyde a curfew. Laurie is all for it until she discovers that it applies to her too. Red booby-traps the house so that he'll know if there are any escape attempts, and keeps increasing the discipline, despite Kitty's pleas for leniency. Jackie is still trying to convince Hyde that she's the woman for him, but he's not buying it.