The Mad Room is a 1969 horror film, starring Stella Stevens and Shelley Winters. It is based on the film, Ladies in Retirement.
When they were only four and six-years-old, Ellen's younger brother and sister were found standing over the bloody corpses of their parents. Twelve years later, they are released from a juvenile mental institution into Ellen's custody. Unwilling to endanger her relationship with her fiancee or her position as a live-in assistant to his wealthy, eccentric stepmother, Ellen spins a precarious web of lies around her family's troubled past.