Han Soo is addicted to gambling and he is chased by a loan shark. His life is in danger. Han Soo turns to his younger brother only to find out he has gone missing.
A genius applications developer who blindly believes in Big Data meets a woman who is not even 1% compatible with his beliefs and falls in love with her.
A husband gets calls from a 'Kim Hee Sun'. The wife begins to suspect he is having an affair and does the same, while their 7-year-old son goes out on a search for 'Kim Hee Sun'.
As soon as he sends the wrong intimate message of him and his mistress to his wife, all communications go down and the husband has to make sure his wife doesn't get the message.