Lonely Hearts is a 2006 American film directed and written by Todd Robinson. It is based on the true story of the notorious "Lonely Hearts Killers" of the 1940s, Martha Beck and Raymond Fernandez. The story of Beck and Fernandez was also the subject of the 1970 film "The Honeymoon Killers", directed by Leonard Kastle and the 1996 film "Deep Crimson", directed by Arturo Ripstein.