Prue and Phoebe dance around the subject of Cole while Piper hides in the basement, afraid that her new-found power could hurt someone.
Elsewhere, a man sits in a darkened room looking through a photo album, mourning his late wife. Things start to shake and his windows shatter as a ghostly woman comes through the window and screams in his face, killing him.
The sisters hear of the death and while adding to Cole's page in the book of shadows, Phoebe has a premonition that a young girl is next. She assumes that Cole is the killer. Prue is not so sure, but she and Phoebe use magic to call Cole to the manor, but it doesn't work.
While Leo tries to convince Piper that she is more than capable of handling her new powers, we see Cole with an alchemist, trying to lessen his human half.
After investigating the crime scene, Prue realizes that the other side of Cole's page that Phoebe was holding when she had her premonition features a Banshee. There is no vanquish, but there is a tracking spell which turns Prue into a dog.
She tracks the Banshee and they save the girl, but Prue gets hit by a car. The man takes her to the vet and takes her home with him.
Meanwhile, back at the manor. Phoebe is in the attic when it all hits her and she breaks down. Leo orbs in downstairs and tells Piper that a Banshee scream does not kill a witch, but turn her into a Banshee.
The Banshee appears in the attic and screams into Phoebe's face. Piper arrives and blows her up, but Phoebe turns into a banshee and runs away. Leo tells Piper that if she hurts anyone, she will be a Banshee forever.
Prue runs away from the man and heads back to the manor, as Piper decides that what she needs to do it summon Cole. Since he is the source of Phoebe's pain, he can take it away and save her. Cole is not receptive and threatens her just as the house starts to shake and Phoebe arrives throwing herself at Cole who shimmers them out of the house to the mausoleum.
Prue, followed by Piper and Leo, head for the cemetery, while Phoebe and Cole in demonic form fight. But when he tells Phoebe that he loves her, the spell is broken.
As Prue is transformed back to human form, Cole tells Phoebe that they still love each other and that that is a pain that they will have to live with. He also tells her that he killed the witch under a spell. Phoebe is dumbstruck and he shimmers out.
Later, at P3, Prue has a date with the dog-lover that hit her with his car, and Phoebe tells Piper that she isn't going to give up on Cole – if he loves her, there's still good in him – and she means to bring it out.