You’re here for a four-week spa stay and really want to unwind from the stresses of everyday life. Bad Rebenstein is a fantastic spa resort. Your spa clinic isn’t for people covered by the state health insurance scheme; the clientele tends to be from the upper middle class. The baths and massages are brilliant, the exercise programme gets you back into shape, and the stunning countryside is perfect for hiking. The other spa guests are also friendly, cultured and entertaining...

You met 41-year-old Constanze at your table in the dining room. You strike up a conversation...