Beijing Bicycle

Beijing: young men in packs, machismo, class divisions, violence, and indifference. Guei arrives from the country: toothbrushes, hotel foyers, and Qin, a rich neighbor in high heels, dazzle him. He gets a job as a messenger. The company issues him a bike, which he must pay for out of his wages. When it is stolen, Guei hunts for it. A student, Jian, has it; for him, it's the key to teen society - with his pals and with Xiao, a girl he fancies... (imdb)