Suicidal dolls are spirits of those who have suffered greatly in their lifetimes, trapped inside plush or ceramic dolls. Usually the dolls the spirits are trapped in had meaning to the deceased; such as a childhood toy or family heirloom. These dolls are stuck in a state of constant sorrow, wanting desperately to be free from their trapped state.
They are unable to move or communicate, except for when around people that they’ve formed a bond with. These bonds happen slowly over time; the owner of the possessed doll may own the spirit for years before they first hear it start to whisper to them. Generally, these whispers come in the form of the dolls begging for death.
The best way to deal with a suicidal doll is to burn them, as this releases their spirit and allows them to begin healing.