Garda Pat Coyne - aka 'Mr Suicide' is back. Injured in the line of duty, he is now out of work with too much time on his hands. Living alone, he's become more obsessive and volatile, developing a fetish for women's knickers. When a body washes up on the docks, the prime suspect is none other than the former Garda's son, Jimmy. Like father like son, both Coynes are notorious for their sweeping spells of self-destruction. But while Pat's motives lean toward cleaning up the world's messes, Jimmy possesses a taste for mayhem. Coyne's estranged wife blames him, his mother-in-law berates him, and his therapist labels him psychotic. But when a duo of criminal thugs try to kill his boy, Coyne decides that it's up to him to straighten things out.