"45cm" is the personal space surrounding a person. It is a zone which insures our personal territory. Any meaningful contact with another person will be a trespassing of the 45cm. "45cm" is about a space. Two people walk toward each other in a hotel corridor. A man and a woman pass each other. They notice each other - it is possible that their personal space will be invaded in the very moment they pass each other. The film will explore the thoughts and emotions that are processed in a few seconds, when a person thinks of the possible invasions of personal space.