Something like Loneliness plot
Mia and Dan are upstairs and downstairs neighbors who have never met. But they know pretty well as the thin floor separating them doesn't completely muffle the noises in their apartments. And in this world, sounds can be captured and stored in Tupperware containers, forming powerful portals to memories and emotions from the past. They finally meet when Dan approaches Mia with a suggestion: he wants to trade some sounds from his life in exchange for a very specific - and highly personal - of hers. As they barter and negotiate, they revisit the memories that defined their romantic history and may also consider the unresolved feelings they evoke.