What began with an off-hand kind gesture to a lonely looking customer at his pub soon sent comedian Richard Gadd's world into a tailspin, becoming a seven-year ordeal at the hands of a dangerously obsessive stalker. Now, Gadd, the recipient of some 41,000 emails, 305 abusive voicemails, and myriad other horrific instances of harassment has taken his experience and translated it into one of the year's most transfixing shows.

It's the summer of 1975 and somewhere in the water near Cape Cod, three men are sitting in a boat waiting for their colleague to get it together so they can film a scene of what is about to become one of the biggest blockbuster movies ever. The colleague is a giant mechanical shark and the men are Robert Shaw, Roy Scheider and Richard Dreyfuss, human co-stars of Jaws.