A couple of lovers who were assigned to assist local medical staff in Wuhan decide to tie the knot as they once scheduled during the working hiatus, which is featured in the documentary film. [Photo provided to China Daily]

Days and Nights in Wuhan, an upcoming documentary which records the title city's fight against COVID-19 earlier this year, will be released in domestic theaters on Jan 22.

With first-hand footage shot in Wuhan, the city hit hardest by the epidemic in China, the film follows doctors, nurses, patients and their families who experienced this tough chapter of everyone's life.

A wife who has recovered from COVID-19 reunites with her husband, a scene in the film. [Photo provided to China Daily]

Many tear-jerking moments are captured on camera. These include a severely ill grandfather displaying his strong will to live by listening to his grandson's poetry recitation on a portable media player; an infected mother missing her infant treated in another hospital only for children; and a daughter fetching the belongings of her mother who has died of COVID-19.

You Are So Good, the film's theme song performed by singer and actress Zhou Xun, was released online on Dec 30, with the hashtag "Zhou Xun's song makes me shed tears". The song has received around 100 million hits on the popular social platform Sina Weibo.

Days and Nights in Wuhan, an upcoming documentary film about the title city's battle against COVID-19, will debut on Jan 22. [Photo provided to China Daily]