Lonely Hearts (2006)
In the late 1940s, a murderous couple known as the 'The Lonely Hearts Killers' kills close to a dozen people. Two detectives try to nab the duo who find their targets via the personals in the paper. sibling relationship, undercover agent, nurse, detective, eroticism, greed, observer, seduction, longing, lonely hearts ad, femme fatale, murder, loneliness
ETC.
