Sigh is a 2000 Chinese drama film directed by Feng Xiaogang, written by Wang Shuo, starring Zhang Guoli, Liu Bei, Xu Fan and Fu Biao.
They separate, and Xiaoying eventually accepts Yazhou's affair for the sake of their young daughter Yueyue.
Even with Xiaodan demanding marriage, Yazhou finds himself unable to divorce his wife, due to the harmful impact their separation has already had on Yueyue.
When she injures her back after falling off a ladder, Yazhou is forced to leave Xiaodan to care for Xiaoying.
He finally comes to appreciate how much his wife did for him - cooking, cleaning, taking care of their daughter, attending to his needs - so that he could write without distraction.