"The Tiger's Tail" is a black comedy thriller about a successful businessman in contemporary boom-time, "Celtic Tiger" Ireland, whose life begins to unravel when he encounters his doppelganger. The film tells the story of Liam O'Leary an Irish property developer of humble origins who has made it big and fast on the back of the Celtic Tiger. His hubris has led him into a scheme to build a national stadium but a rival developer has connived to thwart his plans. Wildly over-extended, Liam finds himself struggling in a receding market. Stressed and over-stretched, he seems on the verge of a mental breakdown, to his horror, he sees his DOUBLE. Is this a harbinger of his death? His neglected wife, Jane is distressed by his erratic behavior and treats his claim to have seen his Double as a hallucination. He confronts his Double and discovers a shocking truth that makes him ask the question "Who Am I?"