Who Did This?

On the day of the exhibition, as Ann noticed that her painting canvas had been punctured, she grew furious and exclaimed, "Who did this?" Can you help uncover any clues within the story?
Advertising agency: Insight Group
Director: Zhang Qu
Executive Creative Director
Executive Producer: Luo Chan
Creative: Chen Haoming / Zhang Qu
Screenwriter: Zhang Qu
Assistant Director: Wing
Copywriter: Liu Yan
Director of photography: Luo Jiahao
Photography Assistant: Ke Wei / Wu Xu
Lighting Director: Tan Weimin
Lighting assistant: Lin Zhi
Management coordinator: Zhong Xu
Producer: Zhong Xiaozhong / Chen Meili
Executive Producer: Chen Hongjie
Art Director: Huang Yucong, Chen Wenjian
Prop: Li Guohua
Setting: Zhou Binlian
Costumer: Tan Quanquan
Makeup artist: Yi Ting
Graphic design: Zhang Qu / Lin Mao / Zhang Jie
Illustrator: Zhang Wenzhe
Editor: Ou Jie Sound Design: Ou Jie
Coloring: Cindy
Post-synthesis: Lai Yuchun
Music: Kang Shao Shao
Radio: Qiu Rubo
CGI: Hu Yan / Chen Zemian / Wu Wenbin
DIT: Wu Ruopeng
Ann: Zhang Yumeng
Senior Brother: Guo Zao
Xueba: Xiang Biying
Bad guy: Lai Dingming
Security: Wu Ruopeng
Hand model: Ho Huixian