The daughter of serial killer couple Fred and Rose West has opened up about life in the Gloucester House of Horrors.

Traumatized Mae West also revealed how she cut off her mom for not giving “straight answers” about her role in the grisly murders.

In 1995, Rose was convicted of 10 murders while Fred, who admitted to 12 murders, hanged himself in prison. He had confessed to killing up to 30 victims. The duo literally got away with murder on a quiet street in Gloucester, England, a city about 100 miles west of London.

Speaking to the Daily Mail, West blasted: “When she wrote to me from prison — her letters arrived every week — and said she’d try to be a proper mom and tell me whatever I needed to know, I decided to ask her about Heather when I next visited her.”

“And I watched her squirm. I thought: ‘She’s not going to give me an honest answer for all her promises.'”

“And she never has done. You never got straight answers. It makes it worse for the families of victims because she is the only one alive now who knows the truth — and yet she hasn’t told it.”

“She stopped writing to me. I’m not on her visitors’ list anymore. It was quite a relief to end contact with her. It had become a burden.”

“Her death will be the next thing (she is 64), and I suppose she might make a deathbed confession. I just wish she’d tell the truth to the authorities, then we’d all know, wouldn’t we?”

West also revealed how her mom stood by as her uncle raped her as a 5-year-old — with her dad believing it was his parental duty to “break in” his daughters.

West told how her half-sister Anne Marie was raped by Fred as an 8-year-old with Rose a participant in the assault.

West visited her mom in prison for 10 years, pandering to her demands for cash and clothes until breaking contact in the mid-2000s.

Rose West is currently imprisoned at HMP Low Newton in Durham, where guards protect her from other inmates. She was the mother of three children: Heather, Mae and Stephen.

Cops discovered the couple would pick up or abduct girls from bus stops around Gloucester and imprison them for several days before killing them.

Their sickening crimes began to unravel when Fred was accused of raping his 13-year-old daughter in 1992, and Rose was arrested for child cruelty.