Opponent of the Lüthi and Blanc-clans and "villain" of the series is the opaque, scheming bankers and illegitimate son of J.J. Blanc, Michael Frick (Gilles Tschudi).
In addition to the places where the characters live and work, the locations include the "Calvados Bar" in Zurich-Wiedikon, which is run by Martin Lüthi's mother Lilian (Renate Steiger) and his half-sister Maja (Tonia Maria Zindel) and her husband Steve Meier (Martin Schenkel and Roeland Wiesnekker respectively), various shared flats and a farm in the Zurich province.
In addition, there are the fictional restaurants "De la Poste" in Sainte-Croix and "Balthasar" in Zurich, which serve as meeting places.
Other important characters are the widowed, scheming gossip reporter Lisbeth Rohner (Esther Gemsch), her brother-in-law, the hypocritical-seeming pastor Ulrich Rohner (René Schoenenberger); street sweeper and "Calvados" regular Willi (Beat Schlatter); the son of the Lüthi couple and young lawyer Thomas (Benjamin Fueter), his sister Julia (Stefanie Stämpfli) and Thomas' ex-girlfriend Lotta Waser (Viola Tami).
The series sometimes touches on controversial topics such as open homosexuality, racism, drug abuse, prostitution, celibacy, incest or polygamy.
Among the most famous were the "Villa Blanc" and the "Calvados Bar", which exists in real life in Zurich and was recreated in a slightly modified form in the studio.