A single mother to a beloved daughter, Unnur lives a deliberately quiet life in Reykjavík, where she works at a bakery under an assumed last name. She has spent years pushing away haunting half-remembrances of the last summer of her childhood, when her otherworldly friend, Freyja, disappeared. When her ex-husband returns to Iceland and brings with him a new girlfriend who seems to know more about Unnur than she’s letting on, Unnur may finally have to face the chilling possibility that she is responsible for her friend’s presumed death. As a cold case investigation reopens and the intricate threads of past and present begin to tangle, Unnur must race to recover the broken memory of what happened all those years ago, or risk losing her daughter.