Something very vital has been lost! When Edwin Antony (Hywel Bennett) has an accident and wakes up in hospital the last thing he is expecting is to find someone else's 'Percy' down below! Doctors successfully replace his member with that of the dead man but refuse to tell him the full story of the organ's origin. So Edwin begins a search which takes him to the philanderer's wife - and also to his many many girlfriends...