Louis Hayward (1909–1985) was a British actor born in South Africa.
Ten strangers are summoned to a remote island and while they are waiting for the mysterious host to appear, a recording levels serious accusations at each of the guests. Soon they start being murdered, one by one. As the survivors try to keep their wits, they reach a disturbing conclusion: one of them must be the killer.
Wealthy writer Stephen Byrne tries to seduce the family maid, but when she resists, he kills her. Long jealous of his brother John, Stephen does his best to pin the blame for the murder on his sibling. Also affected by Stephen's arrogant dementia is his long-suffering wife Marjorie.
On New Year's Eve 1946, Sheila Page kills her husband Barney. She wishes that she could relive 1946 and avoid the mistakes that she made throughout the year. Her wish comes true but cheating fate proves more difficult than she anticipated.
