Emma, a 29-year-old office worker, finds a gift on her doorstep one day. She is curious and brings it inside, wondering who sent it. At work, she shows it to her coworkers, but they all laugh and say they didn’t give it to her. Emma spends days trying to find out who the mystery giver is, but she never discovers the truth. It became a fun mystery for her, even if it was a bit frustrating.