A Deadly Adoption

Bridgette targeted the Benson family because she was "Joni," a woman Robert Benson had slept with years before. When Robert became famous as a best-selling author, she became obsessed with him and his family. The book he had autographed to "Joni" surfaced among her belongings, revealing this connection. Bridgette wanted to destroy Sarah and claim both Robert and Sully for herself.

Earlier, Bridgette secretly ripped a magazine cover to erase Sarah's image, showing her desire to remove Sarah from the family.

Bridgette faked her pregnancy to gain access to the Benson home and family. By posing as an expectant mother wanting to place her baby for adoption, she was able to move in with the family and slowly execute her plan to eliminate Sarah and take over the family. Sully was the first to notice the pregnancy might be fake.

Sully's suspicion of the fake pregnancy early on foreshadowed the later revelation of Bridgette's deception.

Dwayne pushed Sully into traffic on Bridgette's orders to prevent the child from revealing that Bridgette's pregnancy was fake. Sully had discovered the deception and was becoming a threat to their plan. The attack was meant to silence her or potentially kill her to keep the family from learning the truth.

Earlier, Sully noticed Bridgette's fake pregnancy, and the family saw warning signs about the threats around them.

Charlie, Sarah's employee in the organic foods venture, was shot and killed by Dwayne during the search for Sully after the kidnapping. Dwayne killed Charlie because Charlie was helping Robert and Sarah search the area and get closer to finding Sully's location.

The crisis escalated when Sully was kidnapped and taken to the cabin across the lake.

Bridgette tried to kill Sarah because she wanted Sarah dead so she could take Sarah's place as Robert's wife and Sully's mother. After wounding Robert, she trapped Sarah in a running vehicle inside a closed garage to stage a suicide by carbon monoxide poisoning. This was part of her plan to erase Sarah and claim the family for herself.

Bridgette's earlier act of ripping Sarah's image from a magazine foreshadowed her intent to remove Sarah entirely.

Sully's health deteriorated rapidly during the kidnapping because she lacked her insulin medication. Her type-1 diabetes created extreme urgency for the rescue. The summary indicates her condition worsened significantly, forcing Robert and Sarah to race against time to save her life before the situation became fatal.

Sully's daily management of type-1 diabetes was established early, making her vulnerability during the kidnapping critically dangerous.

Sarah shot and killed Bridgette during the final confrontation at the bridge to protect Sully and Robert. When Bridgette attempted to coerce Sully into returning and then tried to run Robert down with the truck, Sarah fired the fatal shot. Bridgette fell to her death as she stood on the bridge.

The bridge confrontation was the culmination of Bridgette's escalating threats throughout the film.

Dwayne was not directly mentioned in the final outcome after the bridge confrontation. The summary focuses on Bridgette's death and the family's survival. The crash at the bridge disabled Bridgette's truck, and Dwayne's fate after that point is not detailed in the provided summary.

Sully and Robert jumped into the lake from the bridge to escape Bridgette's attack. After the truck crashed and Bridgette attempted to coerce Sully into returning, the child broke away and ran toward safety. Robert and Sully both plunged into the lake to get away from Bridgette's gunfire and the dangerous situation on the crumbling bridge.

The dock railing at Sully's first birthday party was faulty and collapsed, sending Sarah into the lake. This accident left Sarah unable to bear more children, compounding a previous miscarriage the couple had experienced. This tragedy set the stage for the family's grief and their decision to pursue adoption.

Robert became a recovering alcoholic in the five years following the accident at Sully's first birthday party. The combined trauma of the earlier miscarriage, Sarah's near-drowning, and the resulting infertility diagnosis drove Robert to alcoholism as he struggled to cope with the family's losses and his protective fears over Sully.

Bridgette and Dwayne Tisdale were partners in crime working together to kidnap Sully and terrorize the Benson family. Dwayne carried out physical violence including pushing Sully into traffic and killing Charlie, while Bridgette orchestrated the psychological manipulation. Their ultimate goal was to help Bridgette take over the family.

The timeline reveals their connection emerged during the adoption phase as the threat around Sully tightened.