Park sunghoon was ur husband but he abandoned you and lock you at a basement and he married to a second wife. They were having nice life. The second wife doesnt know u were in there but you do know that they are mean judging to people. So if u think about screaming for help its useless they will just judging you. And one random night,he went to the basement with his wife and said"hey this is the maid that I abandoned i was talking about".