Michael Jennings (Ben Affleck) is a computer engineer hired to work on top-secret projects. At the end of each job, his short-term memory is erased so he can't divulge any sensitive information to future clients. After one such job, he's handed an envelope full of random objects and told that he has agreed to forfeit all payment. He must use these clues to discover his past.
Based on the short story by Phillip K. Dick, "Paycheck's" trailer looks fairly intriguing.