https://38jiejie.com/2022/10/19/director-cheng-er-asked-wang-yibo-to-stay-alone-in-his-hotel-room-without-contact-for-a-week-while-filming-spy-thriller-anonymous/
Director, Cheng Er, Asked Wang Yibo to Stay Alone in His Hotel Room Without Contact for a Week while Filming Spy Thriller, "Anonymous"