Maria Kallio has just been assigned her first murder investigation. To prove to herself and her squad that she has what it takes to be a detective, she'll have to solve the death of playboy Tommi Peltonen. Found floating facedown at the water's edge of his Helsinki villa, Tommi had invited his choir group to spend a weekend at his retreat. But beneath the choir's seemingly tight-knit bonds seethed bitter passion and jealousy. As Maria sets out to determine the difference between friends and foes, she uncovers the victim's unsavory past-- and motives for all seven suspects. Now it's up to her to untangle a complex set of clues before the killer strikes again.