4 and a half is the apartment occupied on the Plateau Mont-Royal in Montreal by a young couple. It is a chronicle of the daily life of the urban reality of 25-30 year olds: love, friendship, humor and tenderness.

Beaten and live an unimaginably difficult childhood, Elisa Trudel and her sister Madeline Trudel still have hope in their heart. Beaten both by their heartless mother. Their mother that this remarried with another man after their father died of a heart attack. Day after day, Elisa and Madeline overcomes the challenges and they discovers the key to be happy, is love. Based on a true story happened in the 70s.