A serial killer kills redheaded women and drapes them like Venus from Sandro Botticellis artwork.

Jenny Bürstenbinder has climbed the social ladder by marrying Kommerzienrat Treibel. The professor's daughter Corinna Schmidt plans to do the same and woos Treibel's son Leopold with charm and wit. But Jenny Treibel lacks an adequate dowry.

Shortly before her wedding with the smart businessman Paul, the Munich veterinarian Nina learns that her beloved Aunt Charlotte is hospitalized with a heart attack. Nina immediately travels to Lake Chiemsee to visit Charlotte. Once there, her aunt asks her not to marry Paul - he is the wrong man for Nina. An alternative candidate has the older lady already ready: the sympathetic artist Daniel, who is about to move in with his little son at Charlotte.