In “The Lion at the Gate,” a strange piece of graffiti leads to a terrifying encounter for four school friends. In “Final Course,” the world has descended into darkness, but a group of old friends make time for one last dinner party. In “Runaway Blues,” thwarted love, revenge, and something very nasty stowed in a hat box converge. In “Gloria,” a strange girl at a service station endears herself to a coldhearted killer, but can a leopard really change its spots? And in “I’m Not Ted,” a case of mistaken identity has unforeseen fatal consequences.

Riveting, macabre, and explosively original, A Sliver of Darkness is Tudor at her most wicked and uninhibited.