Orpheus in the underworld
The myth of Orpheus is about a man's love for his wife, Eurydice, and his dedication to her.
One day, on their honeymoon, Eurydice is bitten by a snake, and she dies from the poison . Orpheus is devastated--he is so upset that he decides to go to the underworld to retrieve her from Hades.
Orpheus knows that he will meet many challenges on his journey to the underworld, one of which is Cerberus, who is Hades' vicious three-headed dog that he needs to get past. In order to outwit the three-headed dog, Orpheus plays his lyre, which lulls Cerberus to sleep. Orpheus then convinces the ferry-man to take him into Hades. He then plays for Hades and Persephone (the King and Queen of the Dead) and they agree to let him take Eurydice home with him. The only rule, however, is that he is not allowed to look at her until they reach the mortal world once again. While Orpheus is leading her outside the Underworld, he is tempted to look back to ensure that she is still following him. Of course, this one glance means that he has broken Hades' rule, so Eurydice is dragged back to the Underworld. At that point, all hope is lost, and he is unable to get his lover back ("Mythweb").
Video: http://www.abc.net.au/arts/wingedsandals/sandals_fixed.html