A lonely traffic warden falls in love with a mysterious delivery boy and found out they are sharing the unusualness of synesthesia. The mysterious delivery boy believes that all the five senses are intimately connected in one pattern, if he could find a person who shares the same pattern with him, he could fall into the other side of the reality. The traffic warden has to choose if she is going to take a leap of faith or staying comfortably in this lonely boring reality.