An actor is placed in dangerous situations and his fear will be broadcast to the television audience. The audience's emotions will determine whether he is sent into the future or the past.

Nina and Frederik were the big names in international showbiz in the 1950s with their rousing calypso rhythms. That's why "Kærlighedens Melodi" (The Melody of Love) was bound to be a hit when the young, beautiful couple teamed up with the legendary, wonderful "Satchmo," Louis Armstrong, from the world of jazz. Musical interests vary widely in the affluent neighborhood of Hellerup. At the Schmidt wine merchant's, son Peter has only one interest: jazz. At the Supreme Court lawyer's house next door, Mozart is on the program. But his daughters like both jazz and Peter! Even though their fathers are suing each other, the two young people still find each other. And Louis helps when he plays "The Formula for Love."

One dark night, a ravishing young girl flees from a convent boarding school in Switzerland. She is Lisa Hoffmann, daughter of a wealthy Danish-American oil magnate from Brazil, and she is running away with her sweetheart, the calypso singer Jacque. There is a huge uproar in newspapers around the world, and even more so when it turns out that the two young people are performing in cabarets around Europe's capital cities.