Sudden Impact is a 1983 American action-thriller film, the fourth in the Dirty Harry series, directed, produced by, and starring Clint Eastwood and co-starring Sondra Locke. The film tells the story of a gang-rape victim (Locke) who decides to seek revenge on her rapists 10 years after the attack by killing them one by one. Inspector Callahan (Eastwood), famous for his unconventional and often brutal crime-fighting tactics, is tasked with tracking down the serial killer.