Faced with imprisonment for murder, a young woman named Josie encounters a strange and malignant man known as Calder, who offers her a way out at a high price: She must give him her firstborn baby. Agreeing under duress, Josie later attempts to renege on the deal, but Calder eventually returns to take what he claims is rightfully his.
Josie moves on, struggling to come to terms with Calder's machinations. Meanwhile, her child is raised by Calder on the boundary to another realm known as the Other, a wondrous but deadly place for those who are not from there. A twist of fate has Josie believing she has bested Calder at last, however he refuses to let her have her way when he returns to present her with a newer, more harrowing choice.