- A series of mysterious disappearances in 1987 are all eerily connected to the same person.
- An old note is found in a bottle in Jutland which has traveled very long across the ocean a long time ago. The note is hard to decipher, but when the Danish investigator from Section Q receives it, the odd personalities within the section find a new angle on it and try to unveil yet another old and diabolic case even t…
- 丹麦悬疑犯罪片,该片刷新丹麦国产片票房纪录,是系列电影《悬案密码》的第四部,也是最终章,《悬案密码》系列改编自丹麦小说家尤西·阿德勒-奥尔森(JussiAdler-Olsen)的同名小说,