Each of the Charmed Ones has a problem with another woman. Mel fears for the safety of her girlfriend/lover Niko because Niko refuses to let go of the murder of Tripp and his sullied reputation. Maggie is charged with the investigation of the woman who stole Parker, Lucy's ex-boyfriend, by Lucy herself. Oh boy, Maggie is the other woman! Because of her obligations as a witch, Macy, in the meantime, has lost her beau, Galvin, to a new perfect woman Summer.