How is Agatha christies the mousetrap suspenseful?

"The Mousetrap" by Agatha Christie is suspenseful because it uses a classic murder mystery setup in a confined setting (a guesthouse during a snowstorm) with a group of strangers connected by sinister secrets. The tension builds as each character's motivations and alibis are revealed, keeping the audience guessing until the surprising twist at the end. Christie masterfully creates a sense of unease and intrigue through red herrings, unexpected revelations, and clever misdirection.