Uuno Turhapuro menettää muistinsa

Two men, who both have tried to commit a suicide, decide to found a "Let's do it together"-suicide association to help the self-destructive people to succeed in their goal. Soon they have a bus load of candidates and together they start a bus tour in order to find a suitable place for the mass suicide.

Uuno Turhapuro becomes the President of Finland. Streets are named after him and honorary companies are arranged for him. He also tries to turn Finland into a kingdom.

Uuno Turhapuro is searching for a job and takes a correspondence course in tour guiding. Eventually he gets a job in a small travel agency and takes a group of Finnish tourists to Marbella, Spain. Unfortunately Uuno's father-in-law Tuura is in the group, too, with his wife and daughter, Uuno's wife Elisabet. Tuura tries to get a signature to an important paper from a minister who's having a holiday in the area. Meanwhile, Uuno just relaxes and enjoys the sun.

It is the first anniversary of Uuno and Elisabet. Uuno has placed a bet with his friend Härski-Hartikainen a year ago, that if Uuno can take just one year of marriage with Elisabet, Hartikainen will treat him a festive dinner. However, Hartikainen buys a lottery ticket for Uuno, who agrees to deduct it from his debt – and the festive dinner is reduced to a can of milk and half a sausage. As it happens, Uuno becomes the lottery winner of 1.5 million marks, only to soon realize he doesn't own a single penny yet. Mister Tossavainen arrives and offers to finance Uuno before he actually gets the jackpot. Thus, Uuno gets to live a rich live on credit. He buys a raccoon fur, leopard swimming trunks and a couple of Mercedes-Benzes. Women begin to fancy Uuno and so does his father-in-law. As time goes by it is revealed, though, that Uuno is not actually a lottery winner, and so he has to escape the anger of others to Härski's car repair shop.

Uuno goes with his wife to spend summer holiday to their villa in country, studies playing of the violin in a correspondence course and constructs an own violin with do-it-yourself-method, but quits his career when he perceives that takes his free time too much and comes back to live the life "in the shadow of a fridge". In the start scene of film a priest (Ere Kokkonen as voice) says in the Uuno's weddings that his complete name is Uuno Eero Turhapuro, whereas it's in the all later Uuno-films Uuno Daavid Goljat Turhapuro.

Uuno Turhapuro, a useless bum who has married money, creates havoc around his father-in-law's presidential campaign. He dresses up as his long-lost, wealthy brother from America, but things go awry when the real brother appears. At some point Uuno takes up a job at a hardware store, only to warm up a classic TV sketch perfected years earlier by the film's writer-producer Spede Pasanen. Written by Markku Kuoppamäki