Switch By Grant Mckenzie

How far will one man go to save the people he loves most?
Sam White is an out-of-work actor, making a living as a security guard in a shopping mall. He returns home one night to find his house blown up and two body bags being removed from it. He assumes the bodies are those of his wife and daughter, until he receives a call from a man saying they are alive, but will only be spared if Sam follows instructions and completes the increasingly violent tasks set out for him.
When he meets Zack Parker, also a victim of the kidnapper, they realize their pasts are connected, and the two of them must race against time to discover the identity of their sadistic tormentor—staying one step ahead of the police—to save their families.
Set in Portland, Oregon, featuring the spooky and labyrinthine tunnels underneath the city, this is a fantastically commercial, brilliantly paced read from a debut author.