Finally a really good horror movie with an original treatment of the mystical theme of spirits.
I also liked the look at the theme of the lowered instinct of self-preservation in young people.
In the beginning we are shown that some guy, clearly not in his right mind, stabbed his brother with a knife during a party and then killed himself. Then there is a story about high school girlfriends, one of whom has a younger brother. The girlfriends go to a party where they practice communicating with spirits. This is done with the help of a plaster hand. Those who participate in the ritual, really see the spirits of dead people and allow them to enter into themselves. But it doesn't scare young people, it's fun. Sooner or later, it doesn't end well.
There's not a lot of blood and scares. Rather keeps the general psychological tension, gloomy atmosphere and plot.