"Days of Being Wild" is a drama film about the lonely, rebellious spiritual world and emotional entanglement of young people in Hong Kong in 1960. Xu Zai is an immigrant from Shanghai who came to Hong Kong. He was raised by his adoptive mother and was ruthless to every woman he met. He had two cohabiting girlfriends, but they were all abandoned by him. After learning from his adoptive mother that he is the illegitimate son of a nobleman with a Spanish-Filipino physique, Xu Zai decided to find his biological mother, so he went to the Philippines alone
Birth mother refused to meet. Before leaving Hong Kong, Xu Zai gave the car to Wai Zai, who sold the car and gave the rest The money was given to Mimi, Xu Zai's ex-girlfriend, and asked her to go to the Philippines to find Xu Zai.
Chaozai, who had a crush on Xuzai’s ex-girlfriend Su Lizhen, witnessed the breakup between the two, so he decided to switch to running a boat. When they meet in Chinatown, Philippines, Chao Tsai pretends not to know each other. Later, Xu Zai was injured in a fight to buy and sell fake passports. In the end, Xu Zai died on an exotic train.