身为角头的阿庆（郑人硕 饰）在北馆角头大哥仁哥的女儿满月宴上，偶遇摄影师小淇（谢欣颖 饰），原本水火不容的两人，在一次次的争吵中发现其实自己最在乎对方。阿庆与小淇相爱、相知、相惜、互相扶持，阿庆为小淇解决困难、小淇在阿庆事业遇到瓶颈时给予鼓励。但就在此时湳沆的世界在背地里陷害北馆贩毒，不仅让北馆深陷危机，仁哥与五虎们相继误解阿庆，小淇也因为阿庆受重伤。阿庆分身乏术，痛定思痛决定奋力一搏。

大学毕业生天翔（张学友 饰）出身贫寒，其父猜叔（董骠 饰）靠在榕树头卖唱养活天翔以及年幼的一子一女，天翔不愿父亲在市场唱黄色小曲挣钱，但无奈工资微薄，只得在同事的侧目中忍受。天翔在工作中踏实肯干，在好友大傻（刘青云 饰）的帮助下为公司立下功劳，同时大老板的妹妹比蒂（周海媚 饰）对天翔也颇为有意，二人感情渐浓之际，大老板却因天翔一家的地位低下而中断了这段姻缘，天翔只得从相邻的舞女周枫（张曼玉 饰）处获得情感慰藉。失去工作的天翔加入黑道团伙，与大傻一起同另一势力高佬森连番拼杀，高佬森一伙将大傻和周枫害死，天翔向高佬森寻仇之际，猜叔为保全儿子挺身而出……

蓝虹（王馨平 饰）是一名检察官，同时也是一名犯罪心理学家，这一次，她将要面对的是一位名叫卜国威（吕良伟 饰）的邪恶罪犯，这个男人拥有超高的智商和超强的心理素质，许多负责审问他的警员都在与他的周旋之中败下阵来，最后只得请蓝虹出马。刚一接触，蓝虹便知道卜国威不是省油的灯。虽然他对蓝虹承认了自己所犯下的所有罪行，但却始终不愿意将藏匿尸体的地点公开。警方找不到尸体，就没办法给卜国威定罪。随着时间的推移，蓝虹渐渐发现了卜国威隐藏的恐怖真相，那就是他竟然是一名多重人格患者。在不断的和卜国威的不同人格过招的过程中，蓝虹竟也渐渐的失去了理智。

*Shinjuku Mad* was one ofKoji Wakamatsu's six films from 1970. Grim and gritty, stark and steady, burdened with anti-moralizing, generously padded with sex, and totally redeemed by a soundtrack that needs to be released NOW. I knew nothing about this film, loading it up on to my laptop, and every last one of this film's sixty-sixty minutes kept me riveted.Bear with me. The film opens with the band cycling through a jazzy rave-up, the black and images depict dead Japanese throughout a modern city. From the alleyways of the slums, to center of the park, you catch glimpses of bodies everywhere. This introduction is capped off by a lingering shot of a blood-soaked naked woman, face down. By this point, the band has reached a sort of peak. There's a cut, the band changes the direction of the song a bit, and then we're treated to a series of exterior shots from downtown, the lunch hour, maybe. You see a lot of storefronts and stairwells, people moving about. All of the people in these splices are done in negative image.What follows can only be described as harrowing. After the credits, the reel switches to color. We're treated to the on-screen stabbing of a young man in a toga, his attackers strip his special lady-friend of her toga, spend about two minutes smearing her breasts with still-warm blood, and then take turns raping her. She doesn't seem to put up much of a fight. The scene is lensed with all of the enthusiasm of a television spot for a whole foods market.Well, that's a fucked up way to start a movie. If you're still reading, I'll have you know the brutality eases up a little, but the camera's tendency to seek out each scene's more lurid details is relentless. The band never lets up, either. Another constant feature of the film is the protagonist's alienation from society. That's a pretty dated-concept, in a way. This film is cashing in on what could loosely be called the Existential demographic in 1970's Japan. Parts of it could have been written by Oe. Others by Mishima. It definitely, at times, addresses a bit of that lingering air of revolution, but more on that later.The father of the kid stabbed in Technicolor shows up in the nest reel, in the same apartment his son was murdered in. This confused, grieving father asks a totally baked Shoko Asahara for information about the events leading up to his son's death. The long-haired no-goodnik is toking on a Sharpie-sized doobie. He gets so fucking high he passes out and the dad is left there in the empty apartment, getting a major contact-buzz.So, the plot is basically that kind of exchange in larger and larger settings, intercut with glorious shots of the disillusioned father walking through industrial slums. The father, searching for the "Why" to his son's death goes on his quest and pisses just about everyone he comes into contact with off. He goes into subway stations and totally kills some beatniks' buzzes. Then he bullies a Hare Krishna ROCK AND ROLL SUPERSTAR and his belly-dancing percussionist at a park. Then he heads off to a bar, and we're treated to what must have been Tokyo's Greatest Garage Band getting low-down and sleazy here. This scene pretty much sums up what the film is about. As you dig the scuzz and the fuzz, the camera catches all manner of degeneracy and wanton reefer-use. And the bar has no less than three groups of people making out. And they get excessive with the groping.Eventually, the father catches the ringleader of the vicious band of murderer-rapists. "Shinjuku Mad," is his name. After an unbelievably long and convoluted exchange between the protagonist and Shinjuku Mad, it comes out that Mad and the boys are rebelling against all of Japan. It's open season on everyone but them. His son was only a casualty, nothing personal. Their intent is to go on rebelling against society through random acts of violence against people and property.After going through all the trouble of finding Shinjuku Mad, the old man's mind is blown by revolution for revolution's sake. After a few pummellings, he manages to turn the fight around. He winds up leaving with a nude girl that had been tied to a post for the entire scene.He goes back to the apartment his son was murdered in to find his special lady-friend naked with six other dope-smoking cats grooving on free love and blue balls.He decides he's happier with Shinjuku Mad alive and kicking, the band is at another one of its high points, and the camera pans out to the railroad yard, telephones wires, and the bare sides of modern buildings.That was Japan, thirty-seven years ago.