House of Secrets” takes viewers inside the Massapequa Park home of alleged serial killer Rex Heuermann. And for the first time, both Heuermann’s estranged wife and his daughter discuss the case, highlighting a difference of opinion on the question of the New York City architect’s guilt.

Heuermann is accused of killing a total of seven women, whose bodies were among several found on Long Island, New York.

Victoria Heuermann, daughter of accused Gilgo Beach serial killer Rex A. Heuermann, says her father "most likely" committed the killings in a new Peacock documentary, "Gilgo Beach Killer: House of Sec...