When high school teacher Na Aejoon shows up for work on an ordinary day, he never expects to bump into his favorite celebrity in the hallway. But when his school becomes a filming location for a show starring Choi Siyeol, his bias from the idol group A-One, that's exactly what happens! If that's not enough to give a fanboy a heart attack, Siyeol takes an interest in Aejoon and asks him to join the show as his "co-teacher." Desperate to keep his fan life a secret, Aejoon is forced to put his acting skills to the test, and not just on camera. But as he spends more and more time with Siyeol, the deception becomes harder to keep up. Not to mention, he might not be the only one keeping secrets…
韩国SBS电视台新日日剧定名为《丑八怪警报》（音译）。当初暂定名为《Bravo my life》的该剧由演员姜素拉和林周焕联袂主演。《丑八怪警报》是部讲述由于父母的再婚，成为两个兄妹家长的一个男人通过毫无代价的牺牲，体现亲情，最终打破沟通壁垒的家庭剧。曾携手打造人气剧的《我的爱丑八怪》 郑智友作家和申允燮导演时隔六年再度牵手而更受观众期待。
为了养家糊口，李江土（周元 饰）放弃了自己的尊严，成为了日本帝国警察中的一员，助纣为虐。一连串的意外和哥哥李江山（申贤俊 饰）的不幸遭遇让李江土看清了同僚们的贪婪和腐败，痛苦和愤怒之中，他苦练拳脚，摇身一变成为了为名除害的神秘人“新娘面具”。 一次偶然中，李江土结识了名为木村俊二（朴基雄 饰）的男子，两人一见如故，成为了生死与共的莫逆之交，然而，某一天，李江土和木村俊二之间的坚实友谊却遭到了前所未有的巨大危机。那是一个名叫牡丹（陈世妍 饰）的美丽女子，江土和俊二都无法抵挡她所散发出来的巨大魅力，两人成为了情敌。之后，俊二更是在无意之中发现了“新娘面具”的真实身份，在友谊和爱情之间，俊二会做出怎样的选择呢？
