While a shop’s surveillance video is broken, a sum of money goes missing. The manager and his colleague suspect Xiao Long of having stolen the money. To get evidence, they put another sum of money in the store as bait for Xiao Long and secretly install a camera to record evidence of Xiao Long stealing. The manager and his colleague hide outside the shop to observe in secret. Xiao Long returns to the shop and then leaves. The manager and his colleague are sure Xiao Long has stolen the second sum of money, but when they review the camera footage they find the truth is something completely different.