The powerful Greek ship-owner and constructor Thanos proposes to marry Phaedra during the baptism of a ship with her name. Phaedra, who is the daughter of Thanos' greatest competitor, is a bored woman. Thanos gives an expensive ring to Phaedra and soon she learns that his estranged son from his first marriage, Alexis, has left the London School of Economics (L.S.E.) in London to dedicate himself to painting. Thanos asks Phaedra to travel to London to bring Alexis to meet him in Greece. When Phaedra meets Alexis, she falls in love with her step-son and seduces him. Their doomed love affair leads the family to a tragedy.