When not working, crackpot New York cab driver Mel Gibson pieces together his Conspiracy Theory pamphlet and spies on Justice Department lawyer Julia Roberts, badgering her with ideas about multiple conspiracies.

But perhaps he's onto something, as some men cosh and kidnap him...

Though this paranoia thriller's plot gets increasingly bizarre, it rarely ceases to grip - but Mel and Julia aren't the dream team you'd expect.

Gibson's cab passenger in the opening credits is director Richard Donner.