After many years of difficulties and severe trials in both his work and his private life, rock singer /composer Mikael Persson has decided to have such a tremendous party on his impending 50th birthday that will be a memory for life. He wants to hold it at his summer cottage “Spring of Joy”, and invites relatives and friends to both himself and Catti, his fiancée who is twenty years younger.Catti participates in the preparations, but her feelings are very ambivalent.For a long time she has been feeling more and more strongly that their life together is being lived exclusively on Mikael’s terms. They are living his life and Catti could just as well be someone else. She has now finally decided to leave Mikael as soon as his birthday is over. What she doesn’t know is that Mikael intends to propose to her in the middle of the party and transform it into a wedding. After many years of difficulties and severe trials in both his work and his private life, rock singer /composer Mikael Persson has decided to have such a tremendous party on his impending 50th birthday that will be a memory for life. He wants to hold it at his summer cottage “Spring of Joy”, and invites relatives and friends to both himself and Catti, his fiancée who is twenty years younger.Catti participates in the preparations, but her feelings are very ambivalent.For a long time she has been feeling more and more strongly that their life together is being lived exclusively on Mikael’s terms. They are living his life and Catti could just as well be someone else. She has now finally decided to leave Mikael as soon as his birthday is over. What she doesn’t know is that Mikael intends to propose to her in the middle of the party and transform it into a wedding.