They came to Switzerland in the hope of a better life when they returned home. Thirty or forty years later, they're still here. Now in their retirement years, three couples who once came from Turkey and the Balkans are at a crossroads: to return or to stay? The question has been with these migrants all their lives in Switzerland. It's now urgent to find an answer, and the families of their children must also make a decision. Will the older generation return home? Who will look after old parents here or there?

• Documentary