The Smith’s, a seemingly happily married couple, are both employed as professional ‘hit men’. Neither Jane, nor John knows that their spouse is a hit man, so their marriage is full of lies and deception. It isn’t until they are both given the same assignment that they realize each others’ true occupations. Since having two professional killers living under the same roof is bad for business, both Jane’s and John’s employers give each of them their toughest assignment yet – take out each other. The Smith marriage quickly turns into a war and the household into a bloody battlefield as Jane and John fight for their lives to complete one more assignment.