Diary ng Panget follows the unattractive and penniless Eya Rodriguez (Nadine Lustre) as a struggling scholar at a private school. But when she lands a job as a personal maid for the rich and spoiled Cross Sandford (James Reid), she finds out that her paycheck may not be worth the monstrous treatment of her good-looking yet hard-to-please boss.
Two artificial intelligence engineers come together as they work to create the first ever self-aware artificial intelligence. A veteran AI engineer secretly hopes to develop technology to help his diseased daughter, even if it means funding comes from the powerful Ministry of Defense (MoD). His new partner, a young woman gifted in the field of AI, is brought on after her breakthroughs are recognized by the MoD. Things go wrong when the MoD takes over and advances the researchers' work to the next level, teaching the AI to kill and follow MoD instructions with its new and nearly indestructible body.