Shinichi debuteerde op jonge leeftijd als romanschrijver, maar zijn carrière stagneert al vele jaren. Hij heeft het ook uitgemaakt met zijn vriendin. Zijn dagen zijn nu somber geworden. Op dat moment trekken Yuko en haar zoon in bij Shinichi's huis. Yuko is de ex-vrouw van Shinichi's vriend. Shinichi laat ze bij hem thuis logeren. Shinichi schrijft elke avond zijn roman, terwijl Yuko 's avonds uitgaat om met mannen te daten. Ze is in conflict met haar gevoelens om als een sterke ouder op te treden en om te gaan met haar onuitsprekelijke eenzaamheid. Yuko's zoon, die het verlies van de aanwezigheid van zijn vader voelt, begint Shinichi te bewonderen. Met hun woonsituatie proberen Shinichi en Yuko afstand van elkaar te houden. Maar op een nacht.. Bewerking van het korte verhaal 'Yoru, Toritachi ga Naku'

慎一虽然年纪轻轻就成了作家，但作品却不卖座，恋人也离开了他，每天过着闷闷不乐的生活。这时，离婚后无处可去的朋友前妻裕子带着年幼的儿子搬了过来。

慎一把和恋人住的房子让给他们母子，自己住在偏屋的板房里，另一方面，裕子在儿子睡着后就外出，为了填补孤独，她和来往的男人们发生关系。慎一和裕子互不干涉地过着同居生活，但两人都没能向前迈出一步。

作家・佐藤泰志による作品集「大きなハードルと小さなハードル」所収の短編小説を原作とする「夜、鳥たちが啼く」では、人生をあきらめかけた小説家と、愛をあきらめかけたシングルマザーの奇妙な共同生活が描かれる。破壊衝動を内に秘めた売れない小説家・慎一を山田、息子とともに慎一のもとへ身を寄せるヒロイン・裕子を松本まりかが演じた。

Shinichi debuted as a novelist at a young age, but his career has been stagnant for many years. He also has broken up with his girlfriend. His day have now become gloomy. At this time, Yuko and her son moves into Shinichi's home. Yuko is the ex-wife of Shinichi's friend. Shinichi lets them stay at his house. Shinichi writes his novel every night, while Yuko goes out at night to date men. She is conflicted with her feelings to act as a strong parent and to deal with her unspeakable loneliness. Yuko's son, feeling the loss of his father's presence, begins to admire Shinichi. With their living arrangement, Shinichi and Yuko try keep their distance from each other. But one night.. Adapted from the short story "Yoru, Toritachi ga Naku"

신이치는 어린 나이에 소설가로 데뷔했지만 수년 동안 경력이 정체되어 있는 상태. 여자친구와도 헤어져 그의 하루는 이제 우울하다. 이때 유코와 그녀의 아들이 신이치의 집으로 이사 온다. 유코는 신이치 선배의 전처이다. 신이치는 그들을 자신의 집에 머물게 한다. 신이치는 매일 밤 소설을 쓰고, 유코는 밤에 외출해 남자들과 데이트를 한다. 유코는 강한 부모 역할을 하고 싶은 마음과 말로 표현할 수 없는 외로움을 견뎌내야 하는 마음 사이에서 갈등한다. 아버지의 부재를 느낀 유코의 아들은 신이치를 동경하기 시작하고 신이치와 유코는 서로에게 거리를 두려고 노력한다. 그러던 어느 날 밤...