In a mysterious mansion located in the frigid Canadian countryside, a group of friends gathers for a relaxing weekend, but their plans are quickly interrupted when a terrifying event occurs. A mysterious killer known as the "Scarlet Claw" is stalking the residents of the area, leaving a trail of gruesome murders that has everyone on high alert. The atmosphere becomes increasingly tense when the host of the gathering, a strong-willed woman, is found murdered in her own home.
Amidst this chaos, the famous amateur detective Sherlock Holmes and his inseparable companion, Dr. Watson, arrive at the scene to help solve the unsettling mystery. With his keen insight, Holmes begins to unravel the connections between the victims and the inhabitants of the mansion, revealing dark secrets that may have led to the tragedy.
As the plot unfolds, the characters confront their own fears, while the clues hint at betrayals and old grudges. With a series of unexpected twists, the situation becomes more and more dangerous, and Holmes must race against time to catch the killer before it's too late. This captivating story of mystery and suspense keeps viewers on the edge of their seats, revealing that neither friendship nor loyalty is what it seems in a world where death lurks around every corner.