The People Under the Stairs (1991) on Netflix

A thirteen year old boy nicknamed Fool lives in the ghetto and has found out his family is going to get evicted from their run down apartment. On top of that he learns his Mother is dying of cancer. Fool is persuaded by family friend, Leroy to sneak into the landlords' home to steal a prized coin collection rumored to be in their home. Desperate to help save his Mother's life and the family from being thrown into the streets, Fool goes with Leroy and Leroy's friend, Spenser to the house. They use all sorts of disguises to get in, but it doesn't work. Once they force their way into the house, they realize they got a lot more than they were looking for. After Spenser and Leroy are tragically killed, Fool tries to escape. Running for his life, he bumps into the landlords' daughter, Alice, a young abused girl full of nothing but scars and fear. Fool feels sympathy towards Alice and persuades her to escape with him. Fool then finds out that the evil and sadistic landlords are not a married couple but brother and sister who kidnap young boys and keep them locked up in the cellar. Fool will stop at nothing to save them and in the end Fool becomes the movie's hero.