该剧讲述了一个大家庭和四个年轻人被斯卡和双音音乐的世界所吸引的故事。斯卡和双音音乐于70年代末和80年代初在考文垂和伯明翰的基层爆发，将黑人、白人和亚洲青年团结在一起。它预计将于1981年在一个巨大的社会紧张和动荡的时刻开放。在这样的背景下，它讲述了一个故事……

　　In 1990s Scotland, a group of Catholic school girls get an opportunity to go into Edinburgh for a choir competition, but they're more interested in drinking, partying and hooking up than winning the competition.

　　The series tells the story of an extended family and four young people who are drawn into the world of ska and two-tone music, which exploded from the grassroots of Coventry and Birmingham in the late 70s and early 80s, uniting black, white, and Asian youths.　　It is expected to open in 1981 at a moment of huge social tensions and unrest. Against this backdrop, it tells the story of a group of young people fighting to choose their own paths in life, and each in need of the second chance that music offers.

故事发生在1933年的英国，声名远扬的大侦探波洛（约翰·马尔科维奇 John Malkovich 饰）收到了一封匿名信件，寄信者在信件里预言了三场谋杀，并且给出了线索。虽然波洛报了警，但警方并没有太重视这封匿名信。果不其然，凶杀案发生了，名字以“A”和“B”开头的两位被害人均被以信件中所描述的方式杀死。 　　波洛明白自己必须开始和时间赛跑，去拯救唯一的那一位名字以“C”开头的幸存者。之后，波洛又陆续收到了几封内容相似的匿名信，可是当他着手调查这一切事件背后的真相时，却屡屡遭到阻拦，只有克罗姆警探（鲁伯特·格林特 Rupert Grint 饰）坚定的站在波洛侦探这一边。