The up-and-coming designer Marie Haller falls in love with Max, the noble heirs of Wartenborg's well-known Kristallschleiferei - without knowing that he is her half-brother. When Marie learns the truth about her ancestry and shortly thereafter Max is killed in a tragic accident, she turns away in dismay from the noble family.
Marie Haller falls in love with Max, but she finds out that he is her half-brother, i.e. Max's father had an affair with and impregnated her mother. Max's father and Marie's mother rekindle their affair, despite both of them having current partners already. At 1:14:51, they kiss and have implied sex.