In 2014, the Taiwan International Documentary Festival screened Adon WU’s 1997 film Swimming on the Highway, which starkly presented conflicts and conversations between WU and the protagonist, a friend of the director, sparking much discussion on the ethics of documentary filmmaking. Two decades later, WU returned with Goodnight & Goodbye, seemingly having lost none of his ability to shock audiences.

Spectrum of Nostalgia is a sequence of childhood pictures and videos which often come intertwined and in repetitions, accompanied by a gentle voice reading the voice over. What seems to be a dialogue with herself, is the director's way to explore her feelings about family, love and memory.