Ep 1. Behind Closed Doors: Bad Chemistry/The Mystery in the Master Bedroom

Behind Closed Doors: Bad Chemistry/The Mystery in the Master Bedroom is the premiere episode of the 18th season of the investigative series Dateline. This two-part episode delves into two separate cases that involve secrets hidden within the confines of a seemingly normal marriage.

The first part, Bad Chemistry, tells the story of Carol Kennedy, a successful business woman, who suddenly fell ill and died in her home. The autopsy revealed that she had been poisoned with ethylene glycol, a toxic chemical commonly found in antifreeze. The police immediately suspected Carol's husband, Michael, who had a history of substance abuse and financial problems. However, Michael maintained his innocence and pointed the finger at his wife's business partner, Angelynne Amores, who had been having an affair with Michael and was also in severe debt.

Dateline's investigative team delves into the complex web of love triangles, greed, and addiction that surrounded the couple and their business partner. Through interviews with family members, friends, and law enforcement officials, they piece together the events leading up to Carol's death and the various suspects involved. In the end, the answer to who poisoned Carol and why is shocking and unexpected.

The second part of the episode, The Mystery in the Master Bedroom, tells the story of a young couple, Rachel and Neil Entwistle, who appeared to be the picture of happiness. However, their idyllic life was shattered when they were found dead in their bed in their Massachusetts home, with a single gunshot wound to each of their heads.

The police initially suspected Neil, a British citizen, who had recently lost his job and was facing financial difficulties. However, as the investigation continued, a cloud of suspicion began to form around Rachel's family, who had a history of financial problems and were known to have a strained relationship with their daughter.

Dateline's team of investigators dives deep into the evidence and hears from the friends and family members of both Rachel and Neil. They uncover a web of deception and infidelity, and the shocking truth behind the couple's tragic end.

Throughout both cases, Dateline's team takes viewers behind the scenes of the investigations, providing an in-depth look at the evidence and the twists and turns of each case. The show presents a detailed and unbiased look at the workings of the criminal justice system, giving viewers an up-close and personal view of the investigations from the point of view of the detectives, the suspects, and the victims' families.

In this riveting and thought-provoking episode of Dateline, viewers are given a glimpse into the often-secret lives of those behind closed doors – and the devastating consequences that can arise when secrets are kept hidden for too long.