A series of grisly murders by deeply troubled young men has Frankfurt on edge. Pressured by growing media attention and hindered by his bosses' skepticism, gritty detective Lars Kubach believes the murders are related. His investigation uncovers multiple suspects, a doomsday cult, a doctor prescribing experimental medicine, and a mysterious youth counselor, all of whom may be involved. Battling his growing alcoholism and falling for a woman with a questionable past linked to the case, Lars has his faith in everything challenged as he struggles with the recent loss of his mother and brother and feelings for his ex-wife. Dealing with a heat wave and a crime wave Lars must save Frankfurt's image in time for a major upcoming tourist event before his personal demons threaten to plunge his life out of control.
