While hunting one of Boston's most notorious serial killers, an FBI agent disappears without a trace and is declared dead. Six years later, she is found in a cabin in the woods, barely alive and with no memory of the years she was missing. Returning home to learn her husband has remarried and her son is being raised by another woman, she soon finds herself implicated in a new series of murders.
I Stockholm hittas unga, blonda och blåögda kvinnor döda, och New York-polisen Conley får i uppdrag att hjälpa till med utredningen. I Stockholm paras han ihop med Mikael Eklund, en polis av den gamla traditionella sorten som inte har mycket till övers för sin amerikanska kollega.