Duke Anderson (Connery), released from prison after a 10-year term for safe-cracking, immediately starts planning and executing his next job, a daring million-dollar heist of an entire East Side New York apartment building. Among the wealthy tenants is his girlfriend Ingrid (Cannon), a wayward mistress who is under surveillance by her current means of support Werner (Richard B. Schull).
Duke and his gang of expert thieves, including Martin Balsam and Christopher Walken, plot their elaborate robbery, while their every move is monitored and recorded by Werner's private investigators and other agencies, unaware of each other and Duke's impending crime. The final explosive showdown between the police and Duke's crew is a stunning action set piece stage