At the Redfearne family’s glamorous annual ball, teenager Oscar disappears into the woods with Sophie, a waitress. When his body is found, a trail of blood suggests Sophie may have been kidnapped.
 
Detective DI Dani Stephens, still recovering from an attack by her serial killer twin brother, takes on the case. With little to go on and her instincts tested, she is forced to enlist her brother’s help to try to stop the killer — but that puts her in grave danger.
 
The investigation spirals into a deadly game where old secrets, twisted family ties, and chilling rules of murder all collide.