Action • Adventure • Comedy
Ranma is a poor private detective with a strong sense of justice. His partner, Rella, is a thrill-seeking rich girl. They make for an odd couple on the dangerous streets of Kirin Town, until a run-in with a mafia boss ends up in a near-fatal car accident. Ranma wakes up at the scene, but it is days later and Rella is nowhere in sight. He gets back on the case to find out what happened to his partner, but at the stroke of midnight, a metamorphosis occurs, as Ranma is replaced by Rella. Now every day is a race against time as the two detectives, somehow working together though always apart, try to get their normal bodies back while taking on cases and struggling to survive against the city’s vilest villains.
Ranma and Rella are investigating a client's spouse when they learn that the casino where he is losing money is a front for an arms dealing operation. Their car crashes, apparently killing both of them, but Ranma reappears after a week, only to have the gangsters try to finish him off.
Rella reappears at midnight with no memory of how she ended up naked and falling into the hotel pool (as Ranma escaped from the gangsters). She takes on a missing persons case only to discover her employer is out to murder the missing teenager, and then Ranma reappears, wearing a dress in a women's locker room.
Concerned about his missing day while Rella was in control, Ranma goes to the hospital for a check-up, but stumbles across a dying man and ends up wanted for the murder.
Dorothy witnesses the transformation and informs her mistress who goes out to eat and gets a note telling her the dish is poisoned. She spends the rest of the day looking for the antidote only to have to hand the problem over to Ranma at midnight.
Alice's organisation is after three killers known as the Mad Pig Brothers who stole information from them, so she hires Ranma then tells the Mad Pigs he's coming.
In a retrospective, Ranma meets Rella for the first time when he's hired to find out where she lives, only to discover he's pointed the way for her to be killed and he needs to save her and his best friend.
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