The year is 1956 and seventeen year old Cassidy Ryder has just recieved a letter -- but who was the return address from? There has to be some kind of mistake. She decided to return the letter to the sender but the next morning, the letter came back. In the same neat script, it read 'I'm sorry.' Confused, and feeling that the letter was met for her, she opens it. This starts her strange relationship with a man she never met. And when she does finally meet him, it's a pleasent suprise.