Sang-tae is a minor public servant, living happily with a sexy wife and beautiful children in a luxurious mansion provided by his father-in-law. Sang-tae the family man thinks he is the happiest man in the world. He also thinks his family feels the same, but he doesn't know that it's the complete opposite. Then one day, the family realized that US$24 worthy bills, TV remote and pig-ear sushi rolls in a refrigerator disappeared.
The culprit is Gang-jo, a young, capable and handsome programmer who achieved everything in his earliest years. But as he becomes weary about his successful life, he transforms into a thief equipped with hi-tech devices enjoying this adventure.
Gang-jo visits Sang-tae's house once more, stealthily of course, since he can't forget the splendid and shockingly creative cuisine of Mari, Sang-tae's wife, and steal the same things.
After being robbed once again, Sang-tae's family are now trembling in fear. Sang-tae, eager to protect his family, does anything possible to calm their fears. But in spite of his efforts such as buying a vicious dog, he is ridiculed by his wife and children when he lets the thief slip right under his nose. Now he becomes desperate as his authority and confidence as a father and husband is about to collapse. Now, a War between the family man and the thief begins….