A ski resort is a place for pleasant meetings. That's exactly what Tracy thought when she saw her former classmate there. She called out to the girl, but she rushed away as fast as she could... “Maybe I was mistaken? — Tracy thought, “and this is a girl completely unknown to me?” But then why did she run away so quickly, as if she was afraid that she would be caught red-handed? Why does she pretend to be Italian, but buy newspapers in a language she doesn’t know? What makes her father act like he's hiding from someone? This strange girl is being chased by an unknown person in a car - with the obvious intention of hitting her... What does all this mean? Tracy shares all this strange information with her friends, Detective Club members Holly and Belinda - and the investigation begins!..