Knock, Knock
| MPAA Rating: | NR |
| Genre: | Drama, Fantasy, Horror, Short |
| Country: | China, United States |
| Produced By: | Xiao Bing Rao |
| Directed By: | Xiao Bing Rao |
| Written By: | Xiao Bing Rao |
| Cast: | Yingrui Cao, Pierre Bourdaud, Tianbai Zhang, Shi Shi |
| In Theaters: | Dec 30, 2013 |
| Runtime: | 3 minutes |
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