Nightmare at Midsummer

During a murder hunt game at a country house, to which Hercule Poirot is invited as an "expert", a real murder occurs.

Travelling on the 4.50 from Paddington, Mrs McGillicuddy witnesses a murder on a passing train - but where is the body?

Two veteran New York City detectives work to identify the possible connection between a recent murder and a case they believe they solved years ago; is there a serial killer on the loose, and did they perhaps put the wrong person behind bars?

Shiftless dreamer Michael Rogers fantasizes about a lifestyle above his means and marries a wealthy, young girl who just came of age. They hire a famous architect to build their dream home amidst a series of suspicious incidents. The spouse has dark intentions toward his naive, inexperienced bride. Secrets from his past and sinister ties to their house guest Greta lead to a terrible turn of unexpected events.