On a train headed for England a group of travelers is delayed by an avalanche. Holed up in a hotel in a fictional European country, young Iris befriends elderly Miss Froy. When the train resumes, Iris suffers a bout of unconsciousness and wakes to find the old woman has disappeared. The other passengers ominously deny Miss Froy ever existed, so Iris begins to investigate with another traveler and, as the pair sleuth, romantic sparks fly.
When a nobleman is threatened by a family curse on his newly inherited estate, detective Sherlock Holmes is hired to investigate.
A wheelchair-bound young girl returns to her father's estate after ten years, and although she's told he's away, she keeps seeing his dead body on the estate.
