A cliffhanger or cliffhanger ending is a plot device in fiction which features a main character in a precarious or difficult dilemma, or confronted with a shocking revelation at the end of an episode of serialized fiction. A cliffhanger is hoped to ensure the audience will return to see how the characters resolve the dilemma. The phrase is believed to come from the end-of-episode situation in adventure silent films of the early 1900s days, with the protagonist literally left hanging from the edge of a cliff, although the oldest usage the Oxford English Dictionary has is from 1937.