Michael was born in 1991 and grew up in the fictional town of Haddonfield, Illinois, in a highly dysfunctional family. His mother, Deborah, worked as a stripper, his stepfather, Ronnie, was an unemployed alcoholic and abusive, and his older sister, Judith, despised her brother. The only person Michael loved was his foster sister, Laurie. Signs of psychopathy: At school, 10-year-old Michael was severely bullied. He took out his anger on animals, killing them and hiding his face behind paper masks to conceal his emotions. Bloody Halloween: On October 31, 1997, Michael commits his first murders. First, he bludgeons a school bully to death in the woods. Returning home, he binds and stabs his stepfather, then brutally murders his sister, Judith, and her boyfriend. Only his mother and little Laurie survive. Years in Smith's Grove Mental Hospital. After the massacre, Michael is sent for compulsory treatment. His case is handled by the renowned child psychiatrist Dr. Samuel Loomis. Withdrawal: During his first year, Michael communicates, claiming to remember nothing and constantly making masks out of paper and papier-mâché. A mother's tragedy: Deborah Myers visits her son, but during one of their visits, Michael brutally murders a nurse with a fork before her eyes. Unable to bear the grief and the realization of what her son has become, Deborah commits . Little Laurie is later adopted by the Strode family. Complete isolation: After his mother's death, Michael completely stops speaking and withdraws into himself for 15 long years. During this time, he constantly makes and wears masks, which he believes protect him from the outside world. He grows into a huge, physically powerful man. Seventeen years after his hospitalization, in 2014, Michael is transferred to another prison. Escape: During the transfer, Michael displays incredible strength, kills the asylum guards, and escapes. Search for the mask: He returns to his old, abandoned house, where he finds the latex Halloween mask he used as a child hidden under the floorboards and also takes the iconic chef's knife. Hunt for his sister: Michael begins stalking Laurie Strode, who has no memory of her past. He kills her adoptive parents and friends. In the final scene, he kidnaps Laurie and tries to show her a childhood photo to explain that they are brother and sister. In a panic, Laurie shoots Michael in the head with Dr. Loomis's gun. Michael survives the shot to the head. While being transported to the morgue, the ambulance crashes, and Michael kills the orderlies before disappearing. A Recluse: For a year, Michael lives as a wanderer in the woods, feeding on carrion. His mental state worsens: he is haunted by hallucinations of his mother's ghost in a white dress and a white horse, who urge him to "bring Laurie home." Psychic Connection: Over the course of this year, Laurie Strode begins to suffer from severe mental disorders caused by trauma. She subconsciously senses her brother's approach. Resolution: Michael returns for his sister the following Halloween. He hunts her down, killing numerous people along the way and maiming Dr. Loomis.

He stands 203 cm tall. His silence stems from deep psychological trauma and a deliberate withdrawal. He grew up in an extremely dysfunctional family with a despotic stepfather, which is why he suffers from abuse. Long, dirty, matted hair protrudes from under his mask. He has astonishingly great strength, and has a younger sister named Lori.