聖誕節到來，帕特裏剋山警局裏有一半的人都因為風寒病倒瞭。禍不單行，幾天之內附近一帶發生瞭一連串的氰化物中毒案，緊接著有人報案有兩個男孩離奇失蹤。偏偏此時，搖滾巨星羅根•奧尼爾也來到這裏舉辦演唱會，安全保護的重任又落到他們肩上。

但是對於偵探柯林•安德森來說，更恐怖的惡夢正降臨到他的傢庭，緊接著失蹤的第三個男孩，正是他自己的兒子，彼特。

偵察小隊要爭分奪秒的盡力解救齣這些孩子。然而，整個案情的關鍵，其實恰恰隱藏在羅根•奧尼爾所寫的一首歌麯"手鼓女孩"的歌詞中。偵探們何時纔能發現這個秘密呢？

It's Christmas, and half the Partickhill police squad is down with flu. Not good timing, with a series of cyanide poisonings in the area, plus two small boys reported missing in the space of a few days. And then there's the monumental task of providing concert security for rock legend Rogan O'Neill ...But for Detective Inspector Colin Anderson, the nightmare is about to get terrifyingly close to home. For a third boy has now gone missing - Colin's own son, Peter. The team race to find the boys before it is too late. But how long will it be before they realize the key is hidden in the lyrics of a rock song - "Tambourine Girl" by Rogan O'Neill?