In August 1939, eight people who did not know each other, whose jobs and social status were all different, received a letter from the owner of a small island, Owen and his wife. Although they did not know the owner of the island who claimed to be the Owen and his wife, they were all believed. Attracted by the different invitation reasons mentioned in the above, he took a small boat within the specified time to reach this Soldier Island near the Devon coast. There is a mansion on the island, and a housekeeper and his wife welcome them to live in. Only then did they know that the Owens were not at home, and the weather was not good at the time, so 8 guests and 2 housekeepers, a total of 10 people, were trapped on Soldier Island
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At dinner time, the phonograph played automatically, and an unfamiliar male voice read out the name of each of the 10 people on the island one by one, and at the same time spoke out the crimes of each person, and announced that they would die on the island. The wife of the housekeeper was the first to die, and Vera (Maeve Dermody), who came to apply to be a secretary, discovered that the murderer prepared to kill them one by one according to the content of a poem, and every time a person was killed, the living room table The 10 soldier ornaments on the list will be one less. According to the reasoning, there is no one else on Soldier Island, and the murderer is one of 10 people. Is it a policeman, a retired soldier, a doctor, or a judge? As more and more people died, the murderer was ready to come out
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