Black and White Password

This film (drama)Also known as黑白密码，is aMainland ChinaProducerbeauty live，At2023Released in year 。The dialogue language isMandarin Chinese，Current Douban rating6.3(For reference only)。

This drama tells the story of how, five years ago, the police dealt a heavy blow to the "Northwest Wolf" crime group, but the leader Gu Mulan, key members, and undercover officer Lin Ke sent by the police all went missing, leaving their fates uncertain. Five years later, the "Northwest Wolf" group resurfaces, and police officer Chu Yihan (played by Wang Ziqi) voluntarily becomes an undercover agent to infiltrate the crime group in order to find his mother Lin Ke (played by Liu Weiwei). With the support of Cheng Fan, a former deputy captain of criminal investigations and the main executor of the Northwest Wolf case, he gradually gets deeper into the core of the crime group. During this process, Chu Yihan crosses paths with Gu Lina (played by Su Xiaotong), and they develop mutual feelings, experiencing a series of conspiracies together, ultimately uncovering the truth amidst numerous dangers.