what is its plot?
It revolves around the death of a millionaire and division of his inheritance among his descendants.
The Cat and the Canary (1927 film)
In a decaying mansion overlooking the Hudson River, millionaire Cyrus West approaches death. His greedy family descends upon him like "cats around a canary", causing him to become insane. West orders that his last will and testament remain locked in a safe and go unread until the 20th anniversary of his death. As the appointed time arrives, West's lawyer, Roger Crosby (Tully Marshall), discovers that a second will mysteriously appeared in the safe. The second will may only be opened if the terms of the first will are not fulfilled. The caretaker of the West mansion, Mammy Pleasant (Martha Mattox), blames the manifestation of the second will on the ghost of Cyrus West, a notion that the astonished Crosby quickly rejects.
As midnight approaches, West's relatives arrive at the mansion: nephews Harry Blythe (Arthur Edmund Carewe), Charles "Charlie" Wilder, Paul Jones, his sister Susan Sillsby (Flora Finch) and her niece Cecily Young (Gertrude Astor), and niece Annabelle West. Cyrus West's 
what is the cat and the canary (1927 film)? It is an American horror film.
wiki:4509035
The Cat and the Canary (1927 film) [SEP] Plot
In a decaying mansion overlooking the Hudson River, millionaire Cyrus West approaches death. His greedy family descends upon him like "cats around a canary", causing him to become insane. West orders that his last will and testament remain locked in a safe and go unread until the 20th anniversary of his death. As the appointed time arrives, West's lawyer, Roger Crosby (Tully Marshall), discovers that a second will mysteriously appeared in the safe. The second will may only be opened if the terms of the first will are not fulfilled. The caretaker of the West mansion, Mammy Pleasant (Martha Mattox), blames the manifestation of the second will on the ghost of Cyrus West, a notion that the astonished Crosby quickly rejects.