刘(liú )宋元嘉(🌠)年(nián )间，天(tiān )下(xià )积(🐽)弊积(📼)弱，侠女(nǚ )(🍩)骊(lí )歌（李沁饰）不(🛍)解监政刘义康（(🔧)秦昊饰）暗中(🛤)蛰伏之志，误(wù )以为其纵容奸佞，祸(huò )(🎲)患(huàn )朝堂，欲(yù )借太(tài )妃寿宴献舞(🕔)之机将(jiāng )其刺(🗄)杀，不料却沦(lún )为(💆)刘义康(kāng )和奸佞陆(🚥)远(yuǎn )（戚跡饰）(🎫)生死相夺的棋子。阴差(chà )阳错之间，骊歌成为沈家将(jiāng )(🌙)门(📎)嫡(🧚)女，并与刘义(yì )(🚨)康联姻。