LONG and CHING go to have a walk along the beach. SIU YEE pays special attention to CHING for she wants to ensure that CHING is not falling in love with LONG. LONG carries out investigation at the elderly center and he sees a lot of paper cranes through his extrasensory eyes. CHING realizes that TSUN has been telling lies and TSUN promises that he will not see KEI again. LONG finds the answer eventually and he brings CHING to Kat Cheung Elderly House to carry out investigation. They find that MAN CHEUNG is the owner of the elderly center. CHING discovers that SAM SHUN is joining the activities at the elderly center and the resident MUI PO sends paper cranes to CHING. SHUN, MUI and CHEUNG are old friends. TSUN deletes the phone number and all messages of KEI and CHING decides to forgive him. CHEUNG informs the police that MUI is missing. TSUN carries out investigation and discovers the dead body of MUI……