Toni Collette delivers a strong performance within this family drama that incorporates several disturbing turns. She portrays "Annie," who is grieving her recently deceased, domineering mother. However, attending a bereavement support group reveals they were estranged and hadn't been in contact for quite some time. Following the funeral, “Steve,” played by Gabriel Byrne, becomes aware of troubling events, leading to an even greater disaster that culminates years of pent-up animosity between her and her teenage son, "Peter" (Alex Wolff). Still grappling with loss and as her family seems ready to fall apart, she encounters "Joan" (Ann Dowd), who has also experienced a personal tragedy and suggests a way to connect with those beyond the living. Naturally, “Annie” dismisses this idea, but objects shift, flames flicker, and soon she’s attempting to persuade her doubtful family that they can communicate with spirits. While there are occasional scenes of someone moving through the ceiling and some visual effects designed to startle, largely it's a powerful pairing between Collette and Wolff, who both effectively portray the growing anxieties as they attempt to understand a situation being driven by something outside our world – leaving “Steve” increasingly bewildered about how to deal with it. The final quarter of an hour introduces previously unseen elements, but instead of causing confusion, these pieces skillfully tie the narrative together. It unfolds gradually, steadily increasing tension as it progressively undermines the stability of nearly everyone involved.

Source on TMDB