Two women, a current wife and her husband's ex-wife, joined forces to expose what they allege was a decades-long pattern of deception, coercive control, stalking, and abuse by the same man. Their story, which includes accusations of a fake cancer diagnosis, embezzlement, a high-speed police chase, and an alleged kidnap plot, is now the subject of a three-part documentary titled "Don't Date Brandon."

Amber Rasmussen, who married Brandon Johnson in 2017 after meeting him on Tinder, initially believed him to be "the full package." However, she later discovered his multiple affairs and a fabricated leukemia diagnosis. Simultaneously, she found that emails she had received from Johnson's ex-wife, Athena Klingerman, were fake and designed to pit the two women against each other.

Klingerman, who met Johnson online in 2007 and divorced him in 2012, experienced similar patterns of behavior. When Rasmussen contacted Klingerman, she was surprised to find her experiences mirrored her own. "It was a huge relief. Finally she knew the truth and I knew I wasn’t crazy," Klingerman stated.

The two women began investigating Johnson's past, uncovering protection orders and statements from other women detailing accusations of stalking and abuse. Rasmussen reported that after she asked for a divorce, Johnson tackled her onto a bed, threatened suicide, and threatened to kill Klingerman. He was subsequently arrested on charges of unlawful imprisonment and making threats.

Klingerman also described a traumatic experience after serving divorce papers, where Johnson allegedly refused to leave her house, threatened suicide, stalked her, and attempted to attack a man she was dating. Tracking devices were reportedly placed on her vehicle.

Feeling that the legal system had not provided adequate protection, Rasmussen and Klingerman created the podcast "Ex-Wives Undercover: Liars, Cheaters & Love Cons" to expose Johnson and raise awareness about the signs of coercive control. The podcast attracted other survivors of abuse and professionals in the domestic abuse field.

During their investigation, the women learned of Johnson's alleged involvement in an embezzlement scheme involving $392,000. The situation escalated when Johnson, reportedly with active warrants, took his and Klingerman's 12-year-old daughter from school, leading to a high-speed police chase. Authorities reportedly abandoned the pursuit to avoid endangering the child. Johnson later released the daughter safely.

Following this, Rasmussen and Klingerman learned Johnson had begun a relationship with a woman named Rachel in California. Despite their warnings, their fears were realized when the relationship ended, and Johnson allegedly initiated a campaign of intimidation against Rachel and a friend, culminating in an attack with a knife and a Taser. The attack reportedly ended when the friend overpowered Johnson before police arrived.

The evidence collected by Rasmussen and Klingerman, including police reports, protection orders, and court papers, became crucial for law enforcement. Prosecutors later found evidence suggesting the attack was planned.

Johnson ultimately accepted a plea deal and was sentenced to ten years in prison for assault and attempted kidnapping with intent to rape. "It was vindication," Klingerman said. "After 16 years, somebody finally believed us."

However, just days before speaking to reporters, the women learned that Johnson's parole had been moved forward and that he had allegedly been sending threatening messages from prison. "My heart just sank," Rasmussen said. "I called Athena and Rachel and said, 'Guys, it’s awful news.'"

Rasmussen stated she refuses to let Johnson dictate her future, while Klingerman expressed renewed fear but said she has learned to live with it without letting it weigh her down. The documentary "Don't Date Brandon" airs on Channel 4.