SBS Monday Tuesday drama "Suspicious Housekeeper" Choi Ji Woo and Shim Yi Young's roles have changed.

Choi Ji Woo and Shim Yi Young play Park Bok Nyuh, a housekeeper who never smiles, and auntie U Na Young, who always makes troubles, respectively.

On the nineth episode of "Suspicious Housekeeper," aired on October 21, 2013, Choi Ji Woo is smiling after falling on the floor. On the other hand, Shim Yi Young is wearing Pakr Bok Nyuh's trademark, white dress shirt and black apron, and standing with an emotionless face.

The reason why the two have changed their roles will be revealed on the nineth episode of "Suspicious Housekeeper."