Benjamin Browning (Chase), a private investigator living in London, accepts the assignment of acting as a bodyguard for a woman. However, when he arrives at her residence, he discovers the woman had been stabbed to death, before her attacker also fatally stabs Benjamin. In the afterlife, Benjamin is informed that, before he can enter heaven or hell, he must complete an assignment that requires him to return to life to solve his own murder, but, much to his chagrin, he will return to life in a dog's body (specifically Benji's). Benjamin then discovers that the man who hired him in the first place (Sharif) may be behind the murder, as he searches for his killer with the help of a woman he met on the street before his fatal assignment, Jackie Howard (Seymour).
This film features examples of:
- Darker and Edgier: Than most Benji movies.
- Detective Animal: Benjamin is sent back to Earth as a dog on order to solve his own murder.
- Gag Penis: There's a statue of a guy with one.
- Gay Best Friend: Freddie .
- Heroic Sacrifice: Jackie.
- Humanity Ensues: Benjamin temporarily turns back into a human at several points in the film.
- Interrupted Suicide: Benji's is interrupted by Jackie reincarnating as a cat.
- Interspecies Romance Benjamin as a dog with Jackie, including when she reincarnates as a cat.
- Murderer P.O.V.: We see Benjamin's murder from the murderer's point of view.
- Partly Cloudy with a Chance of Death: For some reason, the film is perpetually overcast and thunderous. As The Cinema Snob put it:Every scene in this dog comedy is either overcast, rainy or just plain gloomy looking. It's and ugly film to look at, and I've scene Black Rage.
- Precision F-Strike: Benjamin Browning's first words as Benji is "Oh, shit!"
- Shout-Out: Contains a random one to Star Wars, where the heaven counselor randomly pulls out a lightsaber and said they had it for SW.
- Soundtrack Dissonance: Despite what's mentioned above, the soundtrack mainly consists of Elton John music.
- Whodunnit to Me?: A murdered human is sent back in dog form to investigate his own death.