The sisters must help a young man who is turned into an owl by day and his girlfriend who is turned into a wolf by night. The two lovers have been cursed by the woman's warlock boss, who will lift the curse once she gives in to him or whenever there is a 'night within a day'. Meanwhile, Piper and Leo try to find a way to hide their wedding from The Elders. However, they eventually find out about the wedding and send Leo away during the ceremony.
