A one-off documentary examining part of the Orphic myth. Metamorpheus. In ancient legend, the women of Thrace killed the poet Orpheus in a Dionysian frenzy and threw his head with his lyre into the river Hebrus. Still singing, the head made its way to the island of Lesbos where it was established as an oracle. Professor Oliver Taplin sets out to follow the journey of the poet's head through modern day Bulgaria to the Greek island accompanied by poet Tony Harrison.