Pin is a life-sized medical mannequin covered (like the furniture in their home) with a sheath of see-through plastic. Father brings Pin to "life" with ventriloquy. Ursula knows it's a dummy, but Leon believes Pin is real.
Leon is a 1980s version of Norman Bates. He hates his parents, but yet he grows to be very much like them; distant, cold, always neat and clean and dressed like a department store mannequin. The irony here is brilliant. He has no friends, but for his sister and Pin. When their parents die in a freak car accident, Leon shows some signs of rebellion; ripping the plastic off the furniture and not cleaning the kitchen after a messy dinner. But the rebellion is short lived when Leon brings Pin into the house to live with them.
David Hewlett as Leon is excellent, so sad and lost one moment that you simply want to hug him, so vicious and psychotically frightening the next that you want to run the hell away from him as far and as fast as you can. Cyndy Preston as Ursula is one of the most likable characters I've seen in a long time. She is a genuinely sweet person, compassionate and kind, and she loves her brother dearly even though she realizes that he is a paranoid schizophrenic. She is the only one who manages to escape from the cold prison her parents have made for them both. Leon, hopelessly lost to Pin, is ultimately consumed by the dominant personality.
This film never got much attention, lost as it was in the wash of 1980s splatter films. This is indeed a shame, because Pin is everything that a good horror movie should be: quiet, tense, nerve-wracking and emotionally involving. You care about the characters, unlike the teens in slasher films whom you never get to know as a living, breathing human beings. These people are not just meat for the grinder. You like them, you want them to survive and conquer and overcome the past. All of these elements make this film that much harder to watch, and that much more horrific in its final, chilling moments. The ending is indeed a classic bittersweet one.
Highly recommended for people who enjoy a good, dark descent into the warped mind.