Don't Breathe (2016)

In Detroit, Rocky, Alex and Money are young thieves who rob houses using Alex's father's security company keys. Rocky wants to escape her abusive mother and move to California with her little sister, Diddy. Their fence tells Money about Norman Nordstrom, a Gulf War veteran who was blinded by a grenade. He supposedly keeps about 300,000 dollars in cash at home, a settlement he received after a rich young woman, Cindy Roberts, killed his daughter in a car accident.

The three break in at night after drugging his Rottweiler. The Blind Man wakes up, overpowers Money and shoots him dead, then locks the house. Rocky and Alex are trapped inside. Rocky finds the cash hidden in a safe.

Trying to escape through the basement, Rocky and Alex find a woman chained up and gagged: Cindy Roberts, the woman who killed Norman's daughter. She is pregnant. In the chaos that follows, Norman accidentally shoots and kills Cindy. He is devastated, and turns off the lights so that Rocky and Alex are in total darkness, where he has the advantage.

Alex is knocked out and Rocky is captured. Norman reveals his plan: he forcibly made Cindy pregnant with his own sperm to replace the daughter she took from him, and now that Cindy is dead, he intends to do the same to Rocky. Before he can, Alex returns and handcuffs him, but Norman breaks free and shoots Alex dead.

Rocky escapes outside, but the dog chases her. She traps it, sets off the house alarm, and fights Norman with a crowbar, leaving him apparently dead in the basement. Later, at the train station with Diddy, Rocky sees a news report: Norman survived. He told police he killed two intruders in self-defence, and he said nothing about Rocky or the stolen money. Rocky and Diddy board the train to California.

Who is the woman in the basement? Cindy Roberts, the rich young woman who killed Norman's daughter in a car accident and went free. Norman kidnapped her and kept her chained in his basement.

Why was Cindy pregnant? Norman forcibly impregnated her to replace the daughter she killed. He believed it was justice, but it is a horrific crime.

Does the Blind Man die? No. A news report at the end says he survived and claimed self-defence for killing the two intruders.

Why doesn't he mention Rocky? If he told police about Rocky and the money, they would search his house and find out about Cindy. Keeping quiet protects his secret, and leaves Rocky free but always looking over her shoulder.

What happens next? Don't Breathe 2 (2021) continues the Blind Man's story eight years later, with Stephen Lang returning.