La puerta cerrada

What do you do when your home becomes a living nightmare? Your house should be the safest place in the world. But imagine you rent out a room and the unthinkable happens: someone is murdered there. That's the terrifying reality Alfie Watson finds himself in. He can't go to the police because he knows he'll be in danger too. And he can't just stand idly by either. Then Alfie receives a blackmail note: the killer knows who he is and is after him. And unless he plays his cards right, he might not live to tell the tale.