Evil Under the Sun is a detective novel by Agatha Christie, first published in the UK by the Collins Crime Club in June 1941, and in the US by Dodd, Mead and Company in October of the same year.
The novel features Christie's detective, Hercule Poirot, who takes a holiday in Devon. During his stay, he notices a young woman who is flirtatious and attractive, but not well liked by a number of guests. When she is murdered during his stay, he finds himself drawn into investigating the circumstances surrounding the murder.