The Mysterious Traveler - Death is My Caller

Henry Norton, a wealthy stock broker, is in his office is signing some letters when he's called on the office intercom by his secretary, Miss Perry. She says "Mr. Norton, there is a Mr. Blair here to see you, Charles Blair. He said you know him very well". Norton says "Oh...Charlie Blair! Tell him I'm not in! Tell him I'm out of town, anything! I don't want to see him. I don't ever want to see him! Miss Perry says "He says he knows you're here and insists on talking to you! Oh, sorry Mr. Norton, he just forced his way in and I couldn't stop him!" Norton says "It's quite alright Miss Perry, I'll see him". Charlie says "Hello, Henry. I thought you'd be delighted to see your ex-partner. We haven't seen each other for seven long years".  Norton says " I didn't know you were out already, I thought you had three more years to go". Charlie says "I did, but good behavior cut three years off my sentence".