From back of box:
"Under the heat of the Mediterranean sun, a terrible crime has been committed. Dr Black is dead, murdered by one of the ten so-called friends he had invited to stay in his luxury beach villa. But who could have committed such a wicked deed? The doctor was found in the cellar, but where was he taken there from and what weapon could have been used?
Super Cluedo is the mystery-solving with extra intrigue! It is up to you to visit the villa, on the giant-sized gameboard. Use your skills of deduction to establish the vital facts of the case, in the dark shadows where the sun cannot reach.
Only a Super Detective can deduce in which of the 12 areas of the villa the murder took place. There are eight possible weapons to select from and several secret passages to negotiate in your quest. Work your way around the villa, asking questions and using the special spy spaces to quiz the suspects further. When you are confident you know all the facts, make your accusation...
Can you prove yourself to be a Super Detective?"