1970’s movie about killer in a hospital

Dr. Bock, the chief of medicine at a Manhattan hospital, is suicidal after the collapse of his personal life. When an intern is found dead in a hospital bed, it appears to Bock to be a case of unforgivable malpractice. Hours later, another doctor, who happens to be responsible for another case of malpractice, is found dead. Despondent, Bock finds himself drawn to Barbara, the daughter of a comatose missionary.

Old St. Leopold's Hospital has many urban legends surrounding it, but the residents of Bridgeport all agree on one thing: tortured souls roam its abandoned halls. The mystery proves too much for a pretty young student who decides to investigate for her senior class project. Unfortunately, she does not find ghosts. She, instead, finds Stanley... serial rapist, murderer, and psychopath. As the young girl becomes Stanley's new pet, a team of young investigators descend on the hospital to "hunt some ghosts." Stanley sees nothing but fun and games in his future. But, what Stanley does not know is that the hospital truly is haunted and the restless spirits there are not happy with what he has been doing.

A white man trades with the Comanche for the release of a female stranger and the pair cross paths with three outlaws who have their eyes on the handsome reward for bringing her home and Comanche on the warpath.

Texas Ranger Jake Cutter arrests gambler Paul Regret, but soon finds himself teamed with his prisoner in an undercover effort to defeat a band of renegade arms merchants and thieves known as Comancheros.

A terrified toy salesman is mysteriously attacked, and at the hospital, babbles and clutches the year's most popular Halloween costume, an eerie pumpkin mask. Suddenly, Doctor Daniel Challis finds himself thrust into a terrifying nightmare.

After failing to kill stubborn survivor Laurie and taking a bullet or six from former psychiatrist Dr. Sam Loomis, Michael Myers has followed Laurie to the Haddonfield Memorial Hospital, where she's been admitted for Myers' attempt on her life. The institution proves to be particularly suited to serial killers, however, as Myers cuts, stabs and slashes his way through hospital staff to reach his favorite victim.

As a young girl, Alison Parker attempted suicide after being traumatized by her father's sexual exploits. Now an elite fashion model, she moves to a Brooklyn Heights apartment building that houses a number of bizarre, eccentric tenants. After experiencing a string of disturbing occurrences, she attempts to uncover the building's sinister secret.

Veteran Secret Service agent Pete Garrison investigates a colleague's murder and is subsequently framed as a mole in an assassination attempt on the President due to the machinations of a blackmailer who knows the secret he is hiding. Disgraced, dismissed, and now a fugitive with two relentless federal investigators hot on his heels, Garrison must both clear his name and save the president from assassination.

As the residents of the Pi Kappa Sigma sorority house prepare for the festive season, a stranger begins to harass them with a series of obscene phone calls.

As the residents of sorority house Pi Kappa Sigma prepare for the festive season, a stranger begins a series of obscene phone calls with dubious intentions...