In Passing (2017)

In Chinese mythology, when ghosts pass over Nai He Bridge, they will meet Meng Po, the Lady of Forgetfulness. She's always boiling soup. Every ghost has to drink the soup so they will forget everything in their last lives and go on to their next. After a girl lost her loved one, she gets a blank recipe of Meng Po Soup from a stranger - she has to find all the ingredients by herself and make the soup so she can forget the past.