To catch a killer, one must act the part.

Arriving on the Greek island of Utakos, ageing actor Ormond Basil hopes only for a holiday and perhaps finally to shed the mantle of his most famous role: world-renowned sleuth, Sherlock Holmes.

But when a body turns up in his hotel, the other guests, accustomed to seeing Ormond as the greatest detective of all time on the silver screen, pressure him to solve the mystery.

Yet even with Ormond's encyclopaedic knowledge of plots and killers, this case turns out to be anything but elementary...