比尔(杰里米•希尔伯德 Jeremy Theobald 饰)是个游手好闲的作家,借跟踪陌生人打发时间。这让他体验到形形色色的人生,很神秘,也很刺激。不过,有一次,比尔盯上了一个西服革履的家伙克布(艾利克斯•浩尔 Alex Haw 饰)。尾随到餐厅之后,他却被对方识破,只得摊牌。克布是个贩卖盗版光碟的商贩,此外还做拧门撬锁的勾当。克布带着比尔潜入了陌生人家中,但比尔发现克布根本不取财物,而是寻找主人蓄意掩盖的隐私。同时,克布还提醒比尔要注意仪表。后来,比尔认识了一个神秘的金发女人(露西•拉塞尔 Lucy Russell 饰)。在酒吧,比尔主动与她调情,但是对方冷若冰霜。原来她是黑社会大佬的女人,但是不可遏制的激情让比尔失去了理智,从而堕入了万劫不复的深渊……
Poirot pays what appears to be a routine visit to Dr. Morley, his dentist, but shortly after he leaves the clinic, the doctor is found dead with a gunshot wound to his temple, an apparent suicide. Poirot suspects foul play, and all those who entered the doctor's offices after Poirot left are suspect. They include Alaistair Blunt, a prominent and very influential bank director, Frank Carter, a young fascist thug with a personal grudge against Morley, Mr. Amberiotis, an enigmatic recent arrival from India suffering from a toothache, and Mabelle Sainsbury-Seale, a charity worker also recently returned from India. When Amberiotis is found dead in his hotel room from an overdose of Novocaine and Sainsbury-Seale disappears, Poirot rightly expands his list of suspects and connects the crime to events that occurred in India 12 years earlier.
When Tommy and Tuppence visit an elderly aunt in her nursing home, Tuppence is concerned by the odd behavior of some staff and residents. So when Tuppence hears about Aunt Ada's sudden death and the disappearance of her friend Mrs Lancaster, she realizes her concerns were right. Tuppence meets Miss Marple and together they follow a path of clues that lead them to the Norfolk village of Farrell St Edmund, where they find a community guarding an array of secrets. Only by getting to the bottom of these secrets do they begin to unravel the truth about the mystery of Aunt Ada's death and Mrs Lancaster's disappearance.