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Watch Lonely Hearts online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.

Alma, a lonely woman, falls for the conman who steals her money after seducing her. Frank doesn't want Alma around him, but he cannot do anything about the situation in case she goes to the police. Hot on the trail of the two is a female private detective, working for another of Frank's victims.