潑天富貴驟然降臨，農(nóng)民工李狗娃闖入豪門(mén)世界，只為給兄弟討公道，但誰(shuí)想這竟是一場(chǎng)精心策劃的謀殺。李狗娃的出現(xiàn)，掀起了東燦集團(tuán)的繼承者之戰(zhàn)，張家三子為爭(zhēng)家產(chǎn)勢(shì)如水火，勾心斗角。李狗娃扮豬吃老虎，深入陰謀漩渦。面對(duì)這群虎狼之輩，他如同打不死的小強(qiáng)，一次次逆風(fēng)翻盤(pán)。最終，追求正義的李狗娃，掀翻金字塔頂，破解了死局。

　　100 years ago, the sisters Yod and Yard were the wives of Phra Wanathep. Yard was a loyal servant to madam Kamlai, his main wife. But Khun Thep asked Yod to help him get her sister and he would reward her. So Yod knocked her out and Wanathep raped her. Later, Yod tricks Yard into giving poison to Kamlai, to get rid of her and get Yard in trouble, so she can read morehave Khun Thep all to herself. So Yard unintentionally kills Kamlai and her 2 daughters. All the servants find out that Yard killed Kamlai so they hung her. Yod's mother finds out that she caused Yard's death so she stabbed Yod and put a curse on her, if she was to cause her mother to cry a tear again, she will never be able to get reborn.

人人都在追憶逝去的青春，希望重新回到十八歲的年紀(jì)，彌補(bǔ)當(dāng)年的遺憾，完成未完成的事?？墒菍?duì)于現(xiàn)年三十歲的醫(yī)生徐允在（孔侑 飾）而言，因?yàn)檐?chē)禍而導(dǎo)致的靈魂互換，讓他成了表面三十歲的大叔，內(nèi)心卻是十八歲的少年的事情，應(yīng)該不是那么令人興奮。因?yàn)檫@次互換，徐允在實(shí)際上成為了高中生姜景俊（申原昊 飾），看著鏡中陌生的臉，成為允在的景俊起初迫切想要找到回到真身的辦法，可一時(shí)半會(huì)卻找不到。于是景俊只得不安的開(kāi)始了新生活，而他首先要面對(duì)的就是允在的未婚妻，也是自己老師的吉多蘭（李珉廷 飾）。面對(duì)自己未婚夫性情的大變，讓多蘭很是不適應(yīng)。而這還只是故事的開(kāi)端……