After their mother’s death two estranged sisters, Jenny, an introvert who cared for their ailing mother, and Jackie, an ambitious socialite who left home at sixteen never to return, find themselves trapped together in their dilapidated childhood home during a thunderstorm. As the pair force niceties and attempt to reconnect with each other, personal resentments and long-standing grudges are a front for the darker secrets both are hiding, and it soon becomes clear their memories are not the only things playing tricks on them.