Special Agent Bobby Dees knows what grief feels like. He understands the pain of losing a child. And he'll do whatever he can to prevent it from happening again.The phone call that comes on a Sunday morning will take him away from his insular world of grief and sleepless nights – and into a far darker place. A young girl, Elaine Emerson, has gone missing and only Dees has a chance of finding her.It seems that Elaine was last seen waiting to meet her boyfriend - a mysterious figure she met secretly on the internet, who goes by the name of "El Capitan", and whose reality is as cruel and chilling as the worst thing Dees can imagine...