I had never heard of this show, but it was among the recommended titles on imdb.
So I decided to give it a chance, while not betting a dime I'd end up loving it. I stand corrected! It had me "hooked, lined and sinkered" after 2 episodes.
First of all, it is not a teen series, although the main characters are actually teenagers.
Second, the plot is very good and bursting with twists that keep you guessing all along. The idea and of the 3 parallel timelines one year apart works great and seamlessly here.
Third, the acting is impeccable, the evolution of the characters over the 3 year span is flawless, and quite impressive, with a special mention for Chiara Aurelia. Olivia Holt is insanely pretty.
All in all, a great and entertaining series, that comes as an unexpected surprise. I'm glad I watched it.