Cheng Dieyi killed herself at the end of Farewell My Concubine.

Cheng Dieyi, also known as Xiao Douzi and Yu Ji, is one of the main characters in Farewell My Concubine. The story describes Cheng Dieyi (played by Leslie Cheung), who was sold to a Beijing opera troupe by his prostitute mother when he was a child to learn how to sing in a green dress, and is confused about his identity as a man or a woman. His brother, Duan Xiaolou, is very close to him, and the two of them become famous for their joint performance in Farewell My Concubine. Unexpectedly, Xiaolou married the prostitute Juxian first, and during the Cultural Revolution, the two brothers turned against each other, which made Cheng Dieyi feel lost in his lifelong pursuit of art, and finally cut his own throat on the stage when he rehearsed with Xiaolou again for this play.

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