In Pompeii in the year 79, Lycias and Helen fall in love. Helen's guardian, the high priest of Isis, wants to separate them. To do so, he tries to make Lycias drink a love potion, but a young slave threatens to reveal everything. The high priest, unable to silence her, kills her and arranges to have Lycias accused...

A famous singer Claire Lescot, who lives on the outskirts of Paris, is courted by many men, including a maharajah, Djorah de Nopur, and a young Swedish scientist, Einar Norsen. At her lavish parties she enjoys their amorous attentions but she remains emotionally aloof and heartlessly taunts them. When she is told that Norsen has killed himself because of her, she shows no feelings. At her next concert she is booed by an audience outraged at her coldness and she decides to visit the vault in which Norsen's body lies.