‘Things We Lost Last Night’ is a three-channel film that speculates about the journey of the missing girl through an interior monologue of the now grown-up woman: braiding together a disjointed, hallucinatory tale of unrest, conflicting beliefs, and imagination. Bose’s mother has prosopagnosia (a condition also known as face blindness) and to this day struggles to recount what happened to her during those years. The film is informed by piecemeal accounts from her diary, interspersed with rarely-recounted episodes of the social unrest experienced by West Bengal in the 1960s and 70s — including stories the artist gathered by sifting through hundreds of archival newspapers during his residency at Delfina Foundation in 2022. Built on this research, the oneiric narrative jumps across places, times, and characters, weaving faces and fables of a one-eyed old lady, a Maoist-Naxalite guerrilla, and a trip to the sinking holy town of Joshimath. Through this, Bose ties an intimate family story to the psyche and repressed memories of the upheavals and mass agitations of that period.