It concerns a woman named Melinda (Taraji P. Henson) who learns that not only has her husband Robert (Lyriq Bent) been cheating on her, but he has been leading a double life seeing another woman on the side — and has no further interest in continuing his relationship with Melinda.
As you might have surmised from the poster, she doesn't take it well.
- All of the Other Reindeer: Robert is hated by 90% of the cast, most times justifiably so.
- Contrived Coincidence: The woman Robert cheated with just so happened to inherit a position to give Robert an in to a company he can sell his battery design. When he had a coffee meeting with her, she accidentally left her wallet behind, which looks suspicious to Melinda and her family, especially after he ruined their delivery to an important client.
- The Determinator: Robert refuses to give up on his battery invention and tries for nearly two decades to get it noticed. He finally succeeds, but at the cost of his marriage and dealing with an unhinged ex wife.
- Foreshadowing: Melinda admits early during her narration that there is another side to her, a side filled with uncontrollable rage that is the opposite to her usually cheerful self. After listening to Melinda's side of the story, the psychiatrist suggest that she could be suffering from a mental disorder, and that Robert is not the monster she makes him out to be. She gets upset and leaves the section. Then she plots to kill Robert and his new wife afterwards
- Gaining the Will to Kill: Melinda decides to crash her car into Robert's trailer when she discovers him cheating, and later decides to kill Robert's new fiancee, then eventually Robert himself.
- How We Got Here: The film opens with Melinda being reprimanded for refusing to adhere to court rulings, so she is mandated to attend therapy sessions where she is lead to recount how she ended up in that situation.
- I Can Change My Beloved: Melinda spends 18 years married to Robert, believing eventually he would finally start providing for her knowing he is extremely reluctant to get a job and would rather work on his battery. Deconstructed in that she grows to resent him, which sows further seeds of discontent that ruin their marriage.
- Never My Fault: Melinda apparently doesn't even know the meaning of the word "accountability". Even from the beginning of her relationship with Robert, she irrationally blames him for dropping some notes she had for a college class by walking too closely to him and then runs off to let him clean up the mess.
- Never Trust a Trailer: The trailers make it seem like Melinda is wronged and pushed into retaliation. Admittedly, she is wronged at least once and Robert isn't as responsible a husband as he should be, putting money into developing his battery rather than more stable income, but it becomes clear over the course of the film that Melinda has an undiagnosed mental disorder and slowly slips into irrationality from the stress of keeping that relationship long past it becoming untenable.
- Offscreen Teleportation: At the end of the film, Melinda manages to get onboard Robert's yacht without any explanation. Becomes even more ridiclous and contrived when she is knocked overboard yet moments later is back on the yacht without wet clothes or explanation how she climbed onto a moving ship.
- Poor Communication Kills: How the downward spiral begins. Roberts meets the women he cheated on Melinda with back in college, only now she is a top level employee at the same business Robert has been desperately trying to get to see his battery invention. When Melinda finds out, she assumes Robert is cheating again with the same woman and divorces him, and it only gets worse from there... for Robert.
- Protagonist Journey to Villain: Melinda is shown as a regular young college student before meeting Robert, but grows into a resentful and eventually murderous woman after marrying/divorcing him.
- Reality Ensues: When Melinda rams her Jeep into the trailer where Robert is with his mistress and knocks it over, she is in such a rage that she doesn't realize that she had been seriously injured and eventually passes out. Not only was her being the most physically injured of the three plausible (since a trailer has more protection than a Jeep), but the adrenaline of a high-pressure situation will keep one going for a time, even if a person has fatal injuries.
- "Reason You Suck" Speech: Melinda gives one to her sisters for putting doubt in her mind about Robert after his invention was accepted and he became a multimillionaire, and breaks up with her boyfriend and insults his manhood, making it clear he will never be as ''good'' as Robert.
- Roaring Rampage of Revenge / Woman Scorned: The film basically builds up to this for Henson's character.
- Sanity Slippage: At the near end of the movie, Melinda has clearly lost her marlbles.
- Sassy Black Woman: Melinda tells her therapist that she is sick of the stereotype.
- Unreliable Narrator: According to Melinda, Robert is a con man who was playing her from the start that wore her down over years of shrewd manipulation, but it's clear from her first meeting with him that, though he is flawed, he is still well intentioned and she will be the main source of tension in their relationship, mostly from keeping it beyond all common sense.
- Unwitting Instigator of Doom: Melinda's sisters who kept telling her that Robert is worthless and using her when he was determined to get his invention noticed and wouldn't give up.
- Yandere: Melinda eventually becomes this to Robert.
- Your Cheating Heart: Robert cheats on Melinda with another woman, which sets the plot into motion.