A group of young men and women in Dublin in 1916 are embroiled in a fight for independence during the Easter Rising.The story begins with the outbreak of World War I. As expectations of a short and glorious campaign are dashed, social stability is eroded and Irish nationalism comes to the fore. The tumultuous events that follow are seen through the eyes of a group of friends from Dublin, Belfast and London as they play vital and conflicting roles in the narrative of Ireland’s independence.

Tatau follows Kyle and Budgie, two twenty-something friends from London that set off to travel the world. Ahead of the journey, Kyle gets a Maori-style tattoo to celebrate their eventual destination: the Cook Islands. When snorkeling in a lagoon, Kyle finds the dead body of a local girl, Aumea, tied up underwater. Returning to the lagoon with the police, Kyle finds her corpse has disappeared. But Kyle knows what he saw. Desperate to uncover what happened, Kyle and Budgie find themselves sucked deeper and deeper into a world of Maori myths, symbols, and hallucinatory visions… until finally the full meaning of Kyle’s tattoo is revealed.