The Redentore day is the most involving and spectacular venetian festivity recurring for ages, every year during the 3rd Sunday in July. This documentary-movie shows both the steps of the event's setting and the joy with which the population celebrates the recurrence mixing up sacred and profane spirit. We can follow the building of the Votive Bridge in the Canale of Giudecca, the stunning midnight pyrotechnical show called "foghi", the swarm of boats decorated with fronds and light balloons filling up the lagoon in front of San Marco's square. The Palladian Redentore Temple was erected by citizens in 1575 in order to celebrate the end of a terrible plague with the dissolution of the processional vote renewing every year since then.