Ye Fei returned home early from a business trip and wanted to surprise his wife Liu Ruyan, but found that the so-called loyalty test was just a cover. His wife had already conspired with others to defraud the insurance money and harm him. Her best friend Serena felt uneasy and chose to stand on the side of justice. She teamed up with Ye Fei to collect evidence, and finally exposed their conspiracy and received the legal punishment they deserved.