The heroine races across the factory floor to plunge a knife into the chest of a zombie assailant.
"Excellent!" yells director Shen Chenyan, and another scene is in the can for the post-apocalyptic thriller "Zombie Era", the latest domestically-produced movie destined for a growing online audience in China.
"People who produce the best work are still able to make do with what we have," said Liu Zhaohui, co-founder of Beijing Qishouyouyu Culture Media, which backed 100 online films in 2016. "That is to say, they can dance with handcuffs on."