Stranded after a car accident, a stranger wanders onto a foggy estate during a dark and stormy night in Wales. Inside, the unexpected guest discovers a murdered man, his wife standing over him with a gun. She claims she shot him, but her confession is unconvincing. The guest decides to help her concoct a plan to blame the murder on an intruder. Agatha Christie’s chilling mystery The Unexpected Guest features a Pandora’s box of love and hate, suspicion and intrigue and plot twists that’ll keep you guessing ‘til the very end of this show at Reading’s Quannapowitt Players Theater.