A true story that makes you laugh and cry: heart cinema in the truest sense of the word! Lenny leads a carefree life in luxury. Celebrating, squandering money and sometimes sinking his father's super sports car into the pool, such things are the order of the day for the 30-year-old son of a heart specialist. When Daddy blocks his credit card, Lenny has only one chance to get his old luxury life back: He has to take care of 15-year-old David, who has had a serious heart condition since birth. At first, two worlds collide, because the rich bon vivant Lenny helps David, who comes from a dreary high-rise housing estate, with all the things he has always wanted to experience - he arranges for the first kiss with a girl, lets David drive a sports car and takes him to his first party. Soon, the otherwise irresponsible Lenny realizes that David is growing more and more dear to him and that the two build a deep and meaningful friendship. Based on a true story.