This is how it usually happens. Some older man is unhappy in his marriage and meets a jolly young sweetheart in which he rediscovers his own youth. He dumps his old family and starts living with his new girlfriend. At that point problems arise.
Victor Sebastian is a successful undercover agent based in Europe. Victor's cover is as a talent agent for singer Simone Genet, who is later a romantic interest. Victor is often aided by his contact, Robertson.