"Seventeen years ago, three young women were killed, their bodies dumped in the wasteland of the L.A. River. The killer was never found, and the case was mysteriously closed. Now, all these years later, as memories from her past threaten her present, Detective Alex Delillo reopens the River Killer case." "After a chaotic year, homicide detective Alex Delillo's life if finally back to normal - her daughter is in college and she is experiencing the first pangs of an empty nest - until she receives a phone call about a death outside her Pasadena jurisdiction. The body of an unidentified man is found next to the river near Griffith Park with a single gunshot wound to the head - apparent suicide - and Alex was the last person he tried to contact before he died. When she goes to identify him, Alex comes face to face with the spitting image of her father."

"Now, a half brother she never knew she had is dead under more than mysterious circumstances. LAPD thinks it's an open-and-shut case; Alex isn't so sure. When she reconstructs her brother's final hours, she discovers he had investigated on an old LAPD serial killer case from the '70s - the River Killings. He may have come across something buried deep within the case files, something that could have gotten him killed." "As Alex gets closer to the truth of her brother's murder, her father's past comes into alarming focus, and disturbing flashbacks from her childhood start to plague her. A journeyman actor who disappeared when she was child, her father had a history of violence against women, but was he capable of murder? And is he the one in the shadows, stalking Alex's every move and leaving a body count? In a chilling turn, Alex finds that the truth is as murky and as empty as the L.A. River itself."--Jacket.