Michael Craig is surprisingly effective in this British crime drama. He leads a nasty gang of hoodlums bent own robbing the poorly guarded payroll of a factory. Poorly guarded, that is, until - much to the gang's chagrin - they upgrade the protection to an armoured van. Determined to proceed, though, and after a nervous series of roadwork setbacks, they hit the van, steal the loot and the driver is killed. The widow - "Katie" (a solid performance from Françoise Prévost) is not for giving up, and agreeing with the police that the criminals must have had a man on the inside, she begins an investigation of her own. Meantime, the fatality and the need to keep the loot hidden until the dust settles is causing friction amongst the robbers and with the police closing in and the nerves shredding they begin to turn in on themselves. Sidney Hayers delivers a quickly and tautly paced film for us here, with a strong supporting cast including Billie Whitelaw, the always reliable Kenneth Griffith and Tom Bell all contributing to the general sense of encroaching peril as the truth is sought by the bloodhound "Insp. Carberry" (Andrew Faulds). It does take a bit too long getting going, but once in it's stride this is quite an enthralling watch that culminates predictably, but well.