Open House is a 1987 horror film written and directed by Jag Mundhra, and cowritten by David M. Evans, and starring Joseph Bottoms, Adrienne Barbeau and Mary Stavin.
After an open house, Harry breaks into the property, and electrocutes the realtor with frayed wires. As Harry continues to make rambling calls to KDRX, a detective named Arnold Shapiro is assigned to work with the station to try and track Harry down. In an attempt to protect their employees, the real estate agencies institute new safety precautions, though these do little to deter Harry, who murders another agent by hanging her.Barney Resnick, Lisas unscrupulous business rival, visits a prospective client, a dominatrix who agrees to sell her home through his agency if he has kinky sex with her. Harry follows Resnick, decapitates him with an axe, and snaps the neck of the home owner. The next day, Harry abducts Lisa, who gives cryptic hints about her whereabouts when Harry calls KDRX to taunt David. David tracks Lisa and Harry to an empty house, and as the authorities swarm the building, Harry expresses disappointment over the media not being present, and rants about how corporations and the real estate industry drove him to kill, as they made it so he could never have a place he could call his own ........
Source: Wikipedia