After a year away at boarding school in Switzerland, Clarissa returns to her family's luxurious villa on the edge of Lake Como expecting a peaceful summer. But peace is the last thing she gets when she finds out Marco - her brother Luka's best friend - is staying with them. Marco has always been a mystery: too serious, too distant, and always watching her like he knows something she doesn't. Their energy has never been simple, but this time it's different. Sharper. Closer. Dangerous.