Reginald Hargrove, seasoned oil magnate and amateur detective, hosts a festive Christmas gathering in snowy 1938 London. But as storm clouds trap his guests—directors haunted by Burmese oil scandals—vanishing acts, whispered deceptions, and a crimson clue unravel into deadly intrigue. With pride, pollution, and poison at play, Hargrove's sharp mind charts a path through the blizzard of lies.