New York. Stockholm. Over the course of the last 12 months, young, blonde and blue-eyed women have been turning up dead in a field of asphodel flowers. Through a special dispensation from the NYPD, Detective Tommy Conley is permitted to observe and advise the Stockholm PD. Upon his arrival in Sweden, he is paired with Mikael Eklund, a by-the-book, Swedish cop with an aversion to American grab-and-go culture. Both hate each other, but the two better straighten out their differences as the killings continue.