一棟位於芝加哥的住宅後院陽台，一個在數學領域突破性發現的數學家，一百零三本的數學筆記，關係著父親及凱薩琳父女多年的不和。台灣劇場一流演技派演員挑戰美國東尼獎最佳劇本。綠光劇團藝術監督，國內最"重"量級演員-羅北安。台灣大學戲劇系超人氣表演講師-姚坤君。台灣劇場百變女郎，音樂劇第一把交椅-郎祖筠。能說能唱更會演，15年舞台經驗，打破花瓶的唐先生-樊光耀。四位真正台灣劇場演技派演員劇場大車拼。
In the back yard of a house in Chicago; a mathematician boasts break through discovery in the field; his 103 notebook of math; a confronting relationship between he and his daughter, Katherine.
First class actors and actress of Taiwan Theater challenge the Best Screen Write, Tony Award winning play. Produced and directed by Greenray Theater, casts include the most heavy duty actor Luo, Pei-An; the ever popular instructor of the Department of Drama, National Taiwan University, Yao, Kun-Chun; the diverse, musical first chair, Lung, Tsu-Yun; and the talented, 15 years stage experienced, the one who break the invaluable vase, Fan Kuang-Yao. Four genuine brilliant actors and actress compete on stage.