When Special Agent Finnegan O'Reilly gets shot, and the news brings on his father's heart attack, he decides to take leave from more undercover assignments. The O'Reilly has suffered enough and Finnegan can't be the cause of more distress for this beloved old rascal. Then his boss forces one more case on him - to take place in their own pub. Acting as the target to expose serial, suicide killers rampaging through New York City, Finn must play the part of a wife-beater, a cheating husband and an all-time jerk. No problem, until he meets his make-believe wife.