Though my days are over,
You know where I'll be,
Swim that lost river to me…

Lost River - Murder by Death

After his beloved wife’s death Orpheus was no longer the carefree person he used to be. Life without Eurydice was an endless miasma of grief. He set out on a perilous voyage to the Underworld on a mission to bring his wife back at all cost.

Hades was willing to relinquish Eurydice to Orpheus on one condition — if he so much as glanced at her during the journey through the caves of the Underworld then she would never reach the light, remaining forever lost in the world of the dead.