民国沪上,军阀幼(yòu )子慕容清峄(张凌赫 饰)因被抱错(cuò )而受尽养父虐待(dài ),少(shǎo )年出逃(táo )时被任素素(王(wáng )楚(chǔ )然 饰)所救,却累及其家(jiā )族(zú )遭灭顶之灾。经年重逢,二人(rén )暗生情愫,但任素素为救他(tā )人,毅然假死遁逃,留慕容清(qīng )峄沉沦于(yú )失爱之痛。三年后(hòu )任(rèn )素素回归,却成了慕容清(qīng )峄(yì )的准大嫂。如今的二人,一(yī )个(gè )满是被背叛的怨,一个藏着(zhe )难以言说的痛,在试探与拉(lā )扯间爱恨交织。当误会渐解(jiě )、深情重(chóng )燃,国难却至。慕容(róng )清(qīng )峄与任素素怀揣必死决(jué )心(xīn )对抗强敌,他们的命运将走(zǒu )向何方?