Shut Up Family (2012)

Woo Shin Hye is divorced but she and her beautiful but unintelligent daughters remain filthy rich thanks to their beauty salon. Yeol Suk Hwan is a single dad to a poor but hard working family of two sons and a smart but ugly daughter. Things start to get out of hand when Woo Shin Hye and Yeol Suk Hwan decide to get married and their different families clash.