This is a movie that starts at 60mph and keeps going until the wheels fall off. Ralph Meeker is the best Mike Hammer ever committed to film, and I'm including Stacy Keach-- Meeker isn't a pretty boy, he's a tough as nails hard boiled PI who punches his way through the film.
The opening sequence is pretty shocking-- even for it's time (1955) and if you manage to follow the plot you'll be pretty amazed at the ending as well.
Film noir should be tough and gritty-- and this one fits the bill. Perfect for a hot summer night.