På tro og love.

The young advertising executive Hans and his young wife Grete, who is a dentist, have a considerable annual income between them – and they pay dearly for this to the tax authorities. They calculate that they can save a considerable amount of money by getting divorced. Their friend and lawyer Georg, after much hesitation, agrees to help them with the divorce. However, their "marriage" continues, but it is not long before they each discover that temptation lurks just around the corner—and it is difficult to resist...