Zile, a shape-shifting warlock, poses as Justin. Prue enjoys her lunch with him, but he kidnaps her and a priestess, Dantalian, marries them. This starts a process whereby Prue, and in turn Phoebe, Piper and the Book of Shadows will all turn evil.
When the wedding planners return, Piper and Phoebe are already in touch with their dark sides and use their warlock powers to turn one into a pig wearing a blanket and the other into an ice sculpture, before turning them back, firing them and throwing them out the door with telekinesis. Phoebe turns to Cole for help in rescuing Prue, but when he arrives with information, Phoebe's evil self is more interested in getting physical with Belthazor and beats Cole up until he changes into him. He shimmers away before anything can happen. Leo, who was turned literally into a stick in the mud at one point, is frozen to ice by Piper and shattered by Phoebe.
Once Dantalian's plan has been overturned, thanks to Cole's inside information, and things are back to normal, the girls are left to reflect. Prue realises that there is something attractive about evil and "normal" Justin is way too boring for her. Piper realises that it is futile trying to plan a "normal" wedding given her circumstances. Phoebe returns to the mausoleum to thank Cole, but also to tell him she still doesn't want to see him again; the danger that his evil side will pose a threat to herself or her sisters is too great. He says he is not giving up. Phoebe has kept Cole's return and her contact with him a secret from everyone.