Robert Caulfield je prekaljen policist, ki si od vsega na svetu najbolj želi, da bi za zapahe spravil nevarnega gangsterja Lea Wattsa. Čeprav je v službi dobil že kar nekaj polen pod noge, se ne da. Ponovno se mu ponudi priložnost, ko je mlada Carol Hunnicut na poti na zmenek priča umoru Wattsove tolpe. Uspe ji zbežati, vendar jo Caulfield prepričuje, naj priča proti Wattsu. Na sledi so ji tudi gangsterji, ki najamejo poklicnega morilca Nelsona, da za vedno utiša očividko umora.
A woman secretly witnesses the murder of her blind date for the evening by a top Mafia boss. She immediately goes into hiding without informing the authorities. When they finally catch up with her, she is unwilling to testify to what she has seen, but the Mafia are on her trail. Accompanied by a deputy district attorney, the woman boards a train travelling through a remote part of Canada. The Mafia know him but they have never seen her.