The Time Traveler is a low budget movie from 1984.
A woman and her son find a man on the beach in Greece, where the film is set.
They take him in and look after him and when the alcoholic doctor examines him, he discovers he has two hearts.
He thinks, at that stage, it’s because of the alcohol but he comes to see over time that it isn’t.
Another man becomes jealous of the new arrival and he ends up being accused of murder and arrested.
He is helped though by his friends and escapes.
He then enters time again and the film ends with another time traveller appearing on the beach.
It’s the same man, well the same actor, but a different man in the film.
Movie pages here.