The cast and the past

It starts with 4 people who loves to be together,Iza (Kathryn Bernardo) ,Diego (Daniel Padilla),Bogs (Enrique Gil) and Maggie (Julia Montes). Grace as their enemy blames Iza for ruining Maggie's possesion,that changed Maggies life forever when she forgets everything that ever happened,which is also what she feels about Bogs.