Late at night after work, Guest was walking home.

While walking down a deserted street, someone suddenly knocked Guest out from behind, likely using a sedative.

When Guest woke up, they were in a house they didn't recognize. Attempting to move toward the exit, they were jerked back, unable to move.

Looking for the cause, they found a chain. The chain extended toward Guest's neck.

Guest felt around their neck and discovered a collar. It seemed Guest had been imprisoned by someone.