Daniel, the building caretaker, is deaf and secretly in love with Julie, a violinist living on the second floor. One day, a mysterious woman gives him a jar of jam. The Jam Jar explores the senses of the spectator through a tender love story. Love often involves non-verbal communication. All it takes is a gesture, a look, and everything can be said. In the Jam Jar, the sound play symbolizes the search for harmony within a couple and one's self harmony.