House of Terror (1973)

Step by Diabolical Step, You'll Be Driven to the BRINK of INSANITY!

A nurse is hired to take care of a mean, cantankerous woman. It turns out that the nurse and her boyfriend are after the woman's fortune. When the woman turns up dead in a bathtub full of blood the couple begin to search for the money, but they soon begin to suspect that the woman isn't really dead - or her ghost has come back to avenge her.