Ang, a transgender sex worker with a pretty, feminine voice is assigned a special mission as an undercover spy. She disguises herself as a cisgender man to enter into a romantic relationship with Jit, a belligerent yet idealistic student activist with an evil voice.

After her last visit almost a century ago, Anna returns to Siam, now Thailand, to civilize again.

Worried about her husband being allergic to dust, Nat, a recently-dead woman, returns as a ghost possessing a vacuum cleaner to clean the house and protect her family from other vengeful ghosts in the house. To become a useful ghost, she needs to get rid of the useless ones.

In 2010, more than 90 civilians were killed and 2,000 injured during crackdowns on pro-democracy protests in Bangkok; to date, Thai authorities have not held any government or military officials accountable. The film reframes the experiences of survivors by filming them sharing their stories in facilitated workshops and discussing how to seek justice for their family members with a human rights lawyer.