The time has finally come: head physician Dr. Daniel Guth proposes to Miriam and also decides to invest in the Alpenklinik. The couple's happiness seems perfect when dark clouds gather: Impressed by her professional skills, Daniel hires the competent Linda Singer, who has applied for the vacant senior doctor position at the Alpenklinik. But Linda seems to be hiding something. Mayor Rosner, of all people, discovers the new doctor's secret. The scheming businessman gains a welcome ally in Linda for his plans to restructure the Alpenklinik. Shortly before the wedding, Miriam suddenly faints and struggles with death...

Competition rider Nina Becker and movie star Niklas Tremsaal are a happy couple without a marriage certificate. Marrying is not an issue for the two - until the little niece India holds cheap plastic jewelry on Nina's finger for an engagement ring and so gets an avalanche rolling, which can not be stopped. - "Marry makes me nervous" is a joke-staged romantic comedy. Suzan Anbeh plays marrying Nina, who has to choose between her fiancé and her childhood sweetheart.

It should actually be a wonderful day: Daniel and Miriam finally say "I do". Even Daniel's good friend Stefan has arrived with his family. But the wedding is not under a good star: Stefan collapses during the ceremony and only a heart transplant can save him. Meanwhile, behind the scenes, Miriam's half-sister Linda is plotting to get the head doctor's job. She is also not entirely innocent when Miriam's son Frederik has a moped accident and is admitted to the clinic with life-threatening injuries. Daniel has to decide who will be operated on first - Frederik or Stefan, who has finally received his donor heart.heart transplant can still save him. Meanwhile, behind the scenes, Miriam's half-sister Linda is plotting to get the position of chief physician.