70s murder movie at a hotel with dumbwaiters

Rich old Cyrus West's relatives are waiting for him to die so they can inherit. But he stipulates that his will be read 20 years after his death. On the appointed day his expectant heirs arrive at his brooding mansion. The will is read and it turns out that Annabelle West, the only heir with his name left, inherits, if she is deemed sane. If she isn't, the money and some diamonds go to someone else, whose name is in a sealed envelope. Before he can reveal the identity of her successor to Annabelle, Mr. Crosby, the lawyer, disappears. The first in a series of mysterious events, some of which point to Annabelle in fact being unstable.

Ten years after the death of millionaire Cyrus Norman, his will is to be read out to his six relatives, including Joyce Norman and Wally Campbell. Organized by Norman's lawyer, Crosby, the six meet at Norman's eerie New Orleans Gothic mansion. During the reading, the superstitious housekeeper declares that someone will be dead by midnight. Wally fears for Joyce when she is declared the sole inheritor, but all are alarmed when Crosby turns up dead.

A bellhop living with his mentally impaired brother becomes involved with an unbalanced woman and a scheme to steal guests' valuables.

Hotel switchboard operators try to help a prominent wealthy man whose life may be in danger.

A masked killer stalks an institution for mentally disturbed rich women.

A disgraced reporter investigates an abandoned luxury hotel where five people mysteriously disappeared sixty years earlier.

In a DVD-themed sex hotel, a young employee has hidden drugs in room #7 for criminals in exchange for wiping off his debt. But then his boss hides a dead body in the same room and locks the door. And a dangerous battle of wits ensues between a man who must lock away the secret behind the door, and another, who must go inside.

Trapped in a historic remodeled 5-star hotel with an eclectic group of strangers who refused to evacuate during a hurricane, Caroline must work with concierge Marcos to discover who killed the hotel's maître d' — or end up dead next.

A group of decadent and filthy rich people arrive at the empty hotel where a deceased rich man lived. Soon they are copulating like crazy and the murders begin...

A federal agent searches for a potential killer among the bizarre residents of a dilapidated Los Angeles hotel.