Egypt, 1937. As world-famous Belgian detective Hercule Poirot enjoys a lavish cruise down the Nile, a newlywed millionairess is found dead in a pool of blood, murdered on board. With every one of the affluent passengers on board the luxurious SS Karnak bearing a grudge against the dead wealthy heiress, meticulous Hercule Poirot arms himself with patience and dogged perseverance to ferret out the killer in their midst. Surrounded by a faint trail of clues hidden in plain sight, can Poirot expose the mastermind behind the death on the Nile before another one ends up dead?