里昂（让·雷诺饰）是名孤独的职业杀手，日韩受人雇佣。一天，日韩邻居家小姑娘马蒂尔达（纳塔丽·波特曼饰)敲开他的房门，要求在他那里暂避杀身之祸。原来邻居家的主人是警方缉毒组的眼线，只因贪污了一小包毒品而遭恶警（加里·奥德曼饰）杀害全家的惩罚。马蒂尔达得到里昂的留救，幸免于难，并留在里昂那里。里昂教小女孩使枪，她教里昂法文，两人关系日趋亲密，相处融洽。女孩想着去报仇，反倒被抓，里昂及时赶到，将女孩救回。混杂着哀怨情仇的正邪之战渐次升级，更大的冲突在所难免……©豆瓣
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回复 :Ray 'Harley' Davidson is a hustler. With flash clothes and a fast mouth, Harley lives life in the fast lane. With his passion for all things gambling, money runs like water through Harley's hands and as quickly as he makes a killing he takes a beating, normally at the poker table. Nominally an illegal prize-fight manager, Harley hasn't produced a live one in months, until Charles Buchinsky literally wanders into his life. Charles Buchinsky, street fighter extraordinaire. He's from out of town looking for a fight and the chance to tie up a few loose ends. Keeps himself to himself, lets his fists do the talking and his word is his bond. Victor Maitland, top illegal fight promoter and porn baron. Hates losing and loves the prestige of managing the best hitter in town. Harley dreams of bringing Maitland down and after seeing Buchinsky at work, engineers a fragile partnership...
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