沸腾冰点

唐氏集团总裁林可欣从小得到外公的悉心栽培，十二岁那年，第一次在重要的决策上，外公听了她的建议，奠定了唐氏的发展目标，大学毕业后，外公就让她接管公司的生意，引起舅舅唐伟业的激烈反对，和媳妇郑婉玉一直致力要把林可欣拉下总裁的宝座，因此当唐大中病重陷入昏迷，唐伟业与郑婉玉便伺机夺回唐氏。
　　这时林可欣发现自己的精神状态出现问题，她经常难以控制的歇斯底里，林可欣自己也觉得惊心，是因为外公病危，是自己的精神真的出了状况，又或是因为孙家明最近和女职员范小宁宣布拍拖，令她失落了……，她心里忐忑不安，想起小时候外婆精神病患发作时的情景，她偷偷约定医生检验，这件事让郑婉玉发现了。
　　孙家明是一家小食店的年轻老板，虽然看不惯林可欣不可一世的态度，可是又情不自禁的喜欢上她，林可欣从小目睹父亲对母亲和对他们三姐弟的无情，对感情不信任，她不想自己有被伤害的可能，尤其孙家明的身份跟自己太悬殊了，加上孙家明身边有太多的女性朋友了，公司女职员范小宁就对他痴缠不休，而孙家明似乎也心动了，林可欣心有戚戚，说不出的矛盾、迷惘、难以割舍……，她不知道孙家明与范小宁的交往，背后努力促成的是自己的弟弟林可喜。
　　林可喜素来对姐姐林可欣的强悍与优越感作风很不认同，他故意撮合范小宁与孙家明，要让林可欣一尝失恋的痛苦，林可喜的热情奔放，和家里的成员十分格格不入，母亲唐丽莲因为一次失败婚姻，一蹶不振多年，从来没有余暇关心他们三姐弟，林可欣的不可一世与冷漠，叫人难以消受，妹妹林可怡封闭在她自己的世界里，一家人生活在一起，却是如同陌路，他尝试改变家里人的关系，每次都弄巧反拙，他想减少与舅舅一家人的矛盾关系，结果反而把关系弄得更僵。
　　自唐大中昏迷后，唐伟业迫不及待的与媳妇郑婉玉连串大动作，准备等到唐大中一死，就把林可欣拉下台，不料唐大中奇迹般的醒了过来，两人不肯就此罢手，于是密谋伪造林可欣遗传外婆神经病基因的检验报告，局面顿时出现大逆转……
　　林可欣以为自己真的遗传了外婆的精神病基因，震惊不已，母亲和外公比她更无法接受这样的事实，大家措手不及，一向高高在上，精明干练、主宰一切的她，变得无助、彷徨、沮丧、脆弱，她封闭了自己，悲观的等待自己“发疯”那一刻的到来。唐大中一直担心子女会遗传老婆的精神病，万万想不到，这样的不幸会降临到自己最器重的外孙女身上，他顿时乱了主张，一向依赖女儿的唐丽莲受的冲击比女儿更大，林可喜想帮姐姐，发现自己原来真的一无是处，有心无力，本来决定出国的林可怡，更觉得自己微不足道，回天乏力，唐伟业如愿于尝，夺下公司的主管大权，切断林可欣一家人的财政来源，林家陷入经济困境，面临崩溃的林可欣想一死了之，自杀未遂，陷入昏迷状态，林可怡与林可喜竭尽所能，终于唤醒林可欣，他们第一次深深感受到姐弟之间浓烈不可分割的亲情，但是清醒过来的林可欣仍然脆弱悲观。直到孙家明伸出援手，他看出这家人的问题症结所在，对症下药，让这家人凝聚起来。
　　林可欣从开始的封闭、抗拒、逃避、到最后被家人的亲情感动，回首自己的过去，有许多的顿悟与感触，一家人在这段艰辛的日子里，互相扶持、付出、重新认识自己的感情，孙家明向林可欣求婚，对自己的未来毫无把握的林可欣拒绝了，孙家明最后如何以真情感动了林可欣呢？林可喜、林可怡如何找到自己生命的定位？唐氏出现危机，郑婉玉的诡计如何被拆穿？……
　　Since young, Lin Ke Xin, the CEO of Tang Group, had been groomed in the ropes of business by her maternal grandfather Tang Da Zhong. When she was 12 years old, her grandfather adopted her suggestion for a major business decision, thereby setting the future developmental course of the Tang Group.
　　After her graduation, her grandfather appointed her to succeed him as the CEO of Tang Group. The decision sparked off vehement protests from her uncle Tang Wei Ye, who with his daughter-in-law Zheng Wan Yu, were bent on undermining her. Hence, when Tang Da Zhong became comatose, they took the chance to seize control of Tang Group.
　　It was at this time that Ke Xin found that she often suffered attacks of uncontrollable hysteria. Gripped with fear and shock, she wondered what could have caused such mental anomaly. Was it brought about by her grandfather’s critical condition, or was there something wrong with her mental faculties, or could it be the news that Sun Jia Ming and her staff Fan Xiao Ning became an item that so depressed her?
　　Feeling worried, she recalled the times when her maternal grandmother had her mental breakdowns. Quietly, she went for medical checkups but Wan Yu found out about it.
　　Jia Ming is a young boss of a small eatery and though he disapproved of Ke Xin’s arrogant attitude, he could not help but fell in love with her.
　　Ke Xin was not one, however, to have confidence in a relationship as she had been brought up in a family where her father ill-treated her mother, her and her two siblings and she did not want to risk being hurt. Furthermore, she and Jia Ming were different in social status. In addition, Jia Ming was never short of female companions, just like her staff Xiao Ning who sought ev