Love/Hate is a contemporary four-part series set in the Dublin underworld. Darren Tracey is on a flying visit from Spain to celebrate the release of his brother from prison. Tragedy strikes when his brother is assassinated. Darren is left to look after his sister - a single mum, who is deeply traumatised by their brothers death. Thrown back into the heart of gangland Dublin, Darren does a few jobs for his old boss John Boy Power, played by the award-winning Aiden Gillen (The Wire; Identity). His sisters sanity, the safety of her children and wanting a girl he cant have whos never stopped loving him complicate the journey to his ultimate goal: revenge.