Shaun Wren Carter was once a cheerful young girl who loved spending her time playing chess. But then one unexpected day during their school intramurals, when she joined the chess competition, everything changed. What was supposed to be a fun and exciting event turned into a tragedy. On that day, Shaun lost her memories of what really happened five years ago. Now that she's a third-year Criminology student, Shaun is determined to uncover the truth behind the case that the police had long abandoned. With the help of two pulis detectives who believe in her abilities, sinimulan niya ang kanyang paglalakbay pabalik sa nakaraan. There, she meets Zayden Blake Villareal, a Computer Engineering student whose uncle one of the pulis detectives. But like Shaun, Blake is also searching answers about his past. Mahahanap ba nila ang matagal na nilang hinahanap na kasagutan sa hindi malilimutang nakaraan, o mas higit pa rito ang kanilang matutuklasan?