Three women residents of the New England town of Eastwick each make a wish on a coin, summoning a mysterious man named Darryl Van Horne into their town. Strange things occur upon his arrival and local historian Bun predicts ominous events in the horizon.

As Eastwick prepares for its annual fall HarvestFest, Joanna, Kat and Roxie's lives continue to take a turn for the strange. Distracted by distressing psychic visions of her new neighbor, Jamie, Roxie struggles to protect Mia from harassment by her ex-boyfriend, Gus. As Kat gains the courage to end her own toxic relationship - her marriage to Raymond -- he's back in their home to recuperate from being struck by lightning. And while Joanna worries that Will's romantic attentions are only due to her hypnotic power, she and Penny embark on a perilous mission to uncover Darryl Van Horne's true identity. Joanna finds Milton Philmont, a retired Gazette reporter who years ago wrote about the death of a man named Sebastian Hart - a man who looks uncannily like a young Darryl Van Horne. Armed with an old photo of Hart with three beautiful women, she and Penny seek answers from the eccentric and reclusive Eleanor Rougement.