Summertime Killer
This multinational crime action film also boasts an international cast. During his childhood, a boy (Chris Mitchum) sees four men drown his father; now, the grown young man makes it his business to kill each member of the foursome. His last killing presents him with some challenges, as his victim is only wounded. He kidnaps the man's daughter (Claudine Auger) and goes to a hideout. In the meantime, an ex-cop (Karl Malden) has been tracking them down.
Starring Christopher Mitchum, Karl Malden, Olivia Hussey, Claudine Auger, Gérard Barray, José Nieto, Gustavo Re, Raf Vallone, Víctor Israel, Gérard Tichy
It's a action & adventure and crime movie, and has a rating of 6.1 out of 10 from Imdb which is usually fine for this kind of movie.
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Not found streaming from United Kingdom.