Former Irish Republican Army member Niall Hennessy lives in Belfast, Ireland, with his wife and daughter amid the ongoing Irish-British conflict. Though he still knows people in the IRA, including fugitive leader Tobin, Niall has given up his violent ways. One day his family is caught in a chaotic street shootout and killed by British forces. Overwhelmed with rage and hunted by a Scotland Yard inspector, Niall heads to London to exact his deadly revenge.
In Paris, in the beginning of the Twentieth Century, Cesar Charron owns a theater at the Rue Morgue where he performs the play "Murders in the Rue Morgue" with his wife Madeleine Charron, who has dreadful nightmares. When there are several murders by acid of people connected to Cesar, the prime suspect of Inspector Vidocq would be Cesar's former partner Rene Marot. But Marot murdered Madeleine's mother many years ago and committed suicide immediately after.
