Hector, the dog of an officer of the merchant navy, wanders during a stopover in Lisbon. Captured by smugglers, he is soon used as a mule in a case of diamond smuggling. But this is not counting on his innate sense of justice and law...
A nasty Rome police chief circa 1800 forces the lover of a painter, suspected of harboring a political prisoner, to reveal the hiding place and to yield to his power and lust.
