On the fiftieth floor of the Apex Commercial Tower lies the luxurious office of CEO Jalal Diaa. At 4:30 PM on a winter day, his secretary found him dead from a single, precise stab wound to the back of the neck, his body sprawled behind his massive desk. His coffee mug lay shattered on the floor next to his hand.
The tower boasts a strict security system; no one can go up or down without using magnetic key cards. On that day, only five people were present on the executive management floor. The main problem is that preliminary investigations indicate the crime occurred within a very narrow timeframe, and everyone claims to have been somewhere else.
Investigators are facing a web of lies; some testimonies completely contradict the physical evidence at the crime scene. The killer planned the crime brilliantly and tried to manipulate the time of death to create the perfect alibi, but they forgot one physical detail that cannot be faked.