Plot

A woman is left handcuffed to her dead husband as part of a sick revenge plot. Unable to unshackle, she has to survive as two killers arrive to finish her off.

Emma is stuck in a stale marriage to Mark and is surprised when he whisks her away to their secluded lakehouse for a romantic evening on their 11th anniversary. But everything changes the next morning when she finds herself handcuffed to Mark's dead body. Trapped and isolated in the dead of winter, for Emma to survive, she must fight the mysterious killers coming to finish her off.—krmanirethnam

In New York, Emma Davenport breaks up her relationship with her Afro-American lover Tom in a hotel room. Then she meets her controlling husband Mark at his office in his law firm where Tom works, and he invites her to have dinner with him since it is their marriage anniversary. Emma met Mark when she was attacked by the criminal Bobby Ray, who lost his left eye when Emma hits his eye with the car key, and is in prison for many years. After dinner, Mark blindfolds Emma and heads to their isolated house in the countryside and they have a night of sex. On the next morning, Emma wakes up hand cuffed to Mark, and he commits suicide, shooting his head. Emma seeks her cellphone, but she finds it was trashed by him. She also looks for a knife or a tool to get rid of his body, but Mark removed everything from the house. Further, he drained the gas from the tank of his car. Out of the blue, Tom arrives at the house since Mark sent a message to him as if he were Emma. Suddenly, a truck arrives with Bobby and his younger brother Jimmy, in the beginning of a cat and mouse game with Emma.—Claudio Carvalho, Rio de Janeiro, Brazil

Emma is unhappily married to her cold, controlling husband Mark, a criminal attorney. After ending her affair with Tom, a partner at her husband's firm, Emma goes out with Mark to celebrate their anniversary. At dinner, Mark surprises her with a necklace made of steel. He then drives her to a secluded lake house they used to visit early in their relationship. He apologizes for his past behavior and they make love.

The next morning, Emma wakes up and finds herself handcuffed to Mark, who abruptly shoots himself in the head. Forced to drag Mark's corpse everywhere, Emma discovers he destroyed her cell phone and removed every sharp item in the house. She eventually finds the SUV keys in the trash and reaches the garage. When she starts the vehicle, the radio plays a taunting message from Mark, revealing he knew of her affair. The SUV then dies as all of the gas had been siphoned out.

Hours later, Tom arrives at the lake house. He explains he was summoned there by messages from Emma's phone and that Mark was facing disbarment for illegal activities. They both realize Mark sent the messages just as a truck is seen approaching in the distance. Tom tells Emma to hide as a man named Jimmy emerges from the truck. He tells Tom he's there to fix the plumbing and refuses to leave when Tom tries persuading him. Jimmy's brother, Bobby, then gets out of the truck and stabs Tom to death. It's revealed Bobby was a stalker who once attacked Emma and just got out of prison after serving 10 years.

Emma manages to evade the men and makes it to the boat shed. She uses an anchor to cut herself free from Mark's corpse and hides just as the men enter the shed. Emma overhears them revealing Mark hired them to kill her and that they must find the diamonds they were promised. Bobby suspects the diamonds are in the bedroom safe, which requires Mark's fingerprints and a code that Emma would know.

As the men search the house, Emma finds a fuel can and tries refueling the SUV, but Bobby slashed the tires. Emma then makes her way to the attic and lures the men there. She knocks Bobby out with a club and locks Jimmy in a nearby room. She attempts to escape in Tom's car, but Bobby intervenes. Emma manages to dial 911 on Tom's phone prior to being knocked unconscious. She later wakes up in the bedroom, once again cuffed to Mark's body.

Bobby tells Emma the safe's code is the date Mark proposed to her. When she refuses to cooperate, Bobby threatens to torture her. Jimmy objects and points Mark's gun at Bobby. Emma agrees to reveal the code if she is set free first. Emma is uncuffed and she tells them the code. Bobby opens the safe, only to find a hacksaw inscribed with a clue that implies the diamonds are in Emma's necklace, which has no latch and is impossible to remove. Bobby realizes the necklace can only be retrieved by decapitating Emma. Jimmy tries wrestling the saw away from Bobby, but is accidentally impaled on a coat hook, killing him. Enraged, Bobby attacks Emma, stabbing her in the leg. She manages to fight him off and cuff Bobby to Mark's body.

Emma makes it back to Tom's car as Bobby pursues, dragging Mark with him. She hits Bobby with the car but then crashes into the boat shed. Emma exits the car and fights Bobby on the frozen lake. She stabs Bobby in the shoulder just as the ice gives way. Mark's corpse falls into the lake, dragging Bobby with him. Bobby manages to grab Emma and pull her in as well. As they sink, Emma grabs the knife out of Bobby's shoulder and stabs him in the eye. Mark's body drags Bobby down to his death as Emma swims up to the surface. Lying atop the ice, Emma removes her wedding ring and lets it roll into the lake as sirens are heard approaching in the background. (copied from Wikipedia)