After Forty drugs Joe in an attempt to channel their inner creative genius and finish the script for his film adaptation of Beck's ( Elizabeth Lail) book, Joe can't piece together the events of the night. Unfortunately, as he is making preparations, he runs into Forty who wants his help with the script they are working on. He sets a timer on the pair of handcuffs he uses on Delilah so that once he is long gone from LA, she will be freed. Joe promises to Delilah that he will let her out after he makes plans to leave the city as quickly as possible. Like Joe shows in Season 1 with Paco, he has a soft spot when it comes to protecting children, likely due to the darkness of his own childhood. He knows that Delilah does not deserve to die, and more importantly to Joe, Ellie will be left alone if he kills Delilah.
When Joe locks Delilah in his cage, he is determined to let her out and to prove to himself that he is not the murderer he has been in the past.
In a shocking plot twist, it is revealed that Love murdered Delilah, Joe's neighbor and brief love interest who found out Joe's murderous history. In the Season 2 finale, it becomes clear that Joe really has met his match. We should have known that there was something suspicious about Love when she actually took the time to make Joe an entire pan of cinnamon rolls with salt instead of sugar just to make a point.