Carrie jumps at the chance to a take on a fabulous new identity as Larissa, but gets more than she bargained for when Larissa's hijinks catch up with her. After a whirlwind day in Manhattan, Walt is forced to face the feelings he is desperately trying to hide. Sebastian and Maggie agree to keep a secret from Carrie. Mouse takes a page from Donna LaDonna's playbook. Meanwhile, Tom decides to take a meditation class, but finds himself surprisingly tense after a run-in with another attendee.