Kate (Dakota Johnson) gets invited to her hot neighbor's Halloween party, so BJ (Lucy Punch) tries to help Kate break free and be someone completely out of character for the night. Meanwhile, BJ's plans to steal from one of Kate's neighbors backfire when her conscience gets the best of her. Then, Ben (Nat Faxon) and Tommy (Echo Kellum) decide to stay home and hand out candy to the trick-or-treaters in hopes that they'll meet some hot moms, but the night takes a turn when Tommy unknowingly eats some of BJ's "candy" from Amsterdam, and Kate bonds with Will (guest star Geoff Stults), a single father.