After the recent discovery of time travel, society as we know it is in great danger: crimes that should never have been commited alter the timeline and threaten the destruction of the entire universe. The future is unknown and panic leads government to only one solution... train detectives to solve crimes before they happen! Meet Acher García, a police officer newly formed as a Temporary Case Detective, and together with his mentor, a veteran detective from the old school, solves his first case straight out of the academy: a murder in a floating hotel that should never have happened. Investigate future crime scenes, corroborate suspects' alibis, search for incriminating evidence and uncover the truth before the culprit can get away with it.