Jaakkola, a priest with a bad memory, gets a prescription for a spa day from Dr. Viljo. Ruustinna plans to bring her daughter Elina and the local doctor together. Jaakkola finds the mail he forgot in his pocket, including an important wedding invitation. Rovasti and Ruustinna plan to stop at the wedding on the way to the spa, but things get complicated and there are enough misunderstandings in the knots of love.