In the heady summer of 1977, a naïve young woman called Calista sets out from Athens to venture into the wider world. On a Greek island that has been turned into a film set, she finds herself working for the famed Hollywood director Billy Wilder, about whom she knows almost nothing. But the time she spends in this glamorous, unfamiliar new life will change her for good. While Calista is thrilled with her new adventure, Wilder himself is living with the realisation that his star may be on the wane. Rebuffed by Hollywood, he has financed his new film with German money, and when Calista follows him to Munich for the shooting of further scenes, she finds herself joining him on a journey of memory into the dark heart of his family history.