When Liv moves to London, she meets the mysterious Henry and his group of friends, who pull her into the enthralling world of dream-travel. She and her newfound band of dream-wanderers conduct a ritual to make their biggest dream come true, but it demands the gravest sacrifice.

女警察莫莉·麦基领导调查一名身份不明的妇女谋杀案。为了解决这个案子，莫莉必须和亚历克斯·奥康奈尔合作，而她已经20年没和他说话了。他们发现这起谋杀案与过去的一个悬案有关。