I think it was popular at the time but probably propped up by the Greek locations, the gorgeous Alexandra Bastedo (RIP) and Brian Blessed playing... well gruff, booming Brian Blessed.....in disguise as a Greek peasant.
Watched both episodes and honestly had no idea what was going on. It went backwards and forwards like a yo-yo, everyone double-crossing the other. Someone was after some riches in the form of jewelry, some rich American on a yacht played a snake in the grass wanting to get his hands on it, and the cute Peter McEnery seemed to be having hallucinations whilst investigating his brother's death.
Another 70s Michael J Bird production but have just watched another of his, Who Pays the Ferryman, set in Crete, and it was much more interesting and credible.