After accidentally consuming a drink with hazelnut flavouring, to which she is allergic, she wakes up in the hospital and meets Dr. Tom, who claims that he can help her fix everything that is not going well in her life.

It quickly becomes apparent the therapy's true purpose is not to let Erica erase her regrets, but to help her improve her future by learning from past mistakes and making different decisions in the present.

As the series progresses, she gains confidence in herself and her choices, dates and finds love, and gets promoted to junior editor at a publishing house, from which she eventually gets fired in the penultimate episode of the second season.

In his more mundane life before his own therapy and ultimately becoming a therapist, he was married to Marjorie (Shauna MacDonald) and had a daughter named Sarah (Tatiana Maslany).

After careful consideration and with his life flourishing after reuniting with Amanda, Dr. Tom decides to resign as a therapist on the condition that he is to sever all ties with his patients, including Erica.

Julianne Giacomelli (Reagan Pasternak) – Head editor at River Rock Publishing's non-fiction department and Erica's boss and eventual business partner at 50/50 Press, and Brent's current girlfriend.

Although her perky demeanor often leads people to underestimate or belittle her intelligence, she is a savvy businesswoman who especially excels at the marketing and networking aspects of her job; she is, for example, the only editor who has ever figured out how to keep star River Rock author Thomas Friedken's rampant ego under control.

In the third season, Judith and her husband Anthony undergo marriage counseling when she encounters her high school sweetheart and literary agent, Will Appleyard (Shaun Benson).

During her session to stop Jenny from bullying another student Fiona Watt, Erica learned that the reason behind it stemmed from their rivalry over a popular chemistry teacher, Mr. Callahan.

Dr. Samantha Rachel "Sam" Strange (formerly McIntosh) (Joanna Douglas) – Erica's younger sister and a surgeon, Josh's longtime girlfriend and ex-wife albeit briefly, and Lenin's current domestic partner.

During her group therapy session in "Two Wrongs", Erica travels back to Leo's fraternity pledge for her regret of spending a weekend with a stranger instead of her brother, leading to him dropping out of university.

The therapists help their patients using an unusual therapy program which involves sending them back in time to events they regret to learn life lessons from their efforts to fix them.

In "Sins of the Father" we see that, unlike Tom, Naadiah puts her personal life before her work as a therapist, with another job, parties, a wife and a daughter.

He is seen interacting with Dr. Naadiah in a couple of episodes, voicing concern on Dr. Tom's unethical behavior such as traveling to the future for information on Erica's fate.

In the episode called "The Tribe Has Spoken", Adam meets Beatrice (who was his wife and the mother of his child in an alternate timeline) and asks her out on a date, under the impression of fulfilling his destiny to make a commitment.

He is always well-dressed and well-kept and worked as an underwear model before joining River Rock, leading many people to initially assume (wrongly) that he is gay.

By the end of Season Two, Brent Kennedy showed his true colours when he brought down Julianne Giacomelli's reign at River Rock Publishing – and got both her and Erica fired in the process.

As shown towards the end of the season, Brent tries to conceal his real reason for ruining Julianne's career, implying that he has been in love with her from the beginning and was jealous of her personal involvement with Friedken.

Claire is the daughter of a wealthy francophone industrialist from Montreal, but during her university days she hid her identity, until Erica disclosed it during a time travel, in order to appear more believable in her left-wing activism.

In one episode, Julianne describes Dave and Ivan, who identify with the bear subculture in gay life, as "looking like Fraggle Rock but sounding like Queer as Folk".

[13] Katie Atkins (Sarah Gadon) – Despite being attached at the hip since childhood, her friendship with Erica takes a downhill turn in high school after getting fired from Casa Loma for co-hosting an unauthorized Halloween party.

In Season 4, he has returned to Toronto and becomes Erica's first training patient, where she teaches him to be a better person and therefore he amicably parts ways with Sam, which allows her to peacefully move on with her life.

Upon learning of the truth, Erica and Julianne decide to drop him as their author, despite the money they had poured into his launch which nearly broke them, and shred his manuscript that was once considered the jewel of their company.

Thomas Friedken (Jeff Seymour) – The author of River Rock's bestselling self-help book The Secret of Now, he had an affair with Julianne, until Erica caught him having sex with a junior employee in the photocopy room.

He is generally portrayed as a fast-talking and relentlessly self-promoting charlatan who owes his success more to his ability to bullshit and intimidate people than to any real talent as a self-help guru.

Frank Galvin (David Fox) – The founder, president and CEO of River Rock, he is usually mentioned more than seen, but he does fire Julianne and Erica near the end of Season Two.

The friend is revealed to be celebrity fashion journalist Jay Manuel, and the gesture is successful in saving 50/50 Press and in beginning to mend Julianne and Brent's relationship.

[14] In the show's final season, Being Erica faced some criticism for several examples of product placement which appeared awkward or poorly executed.

)[15] National Post arts journalist Jessica Leigh Johnston wrote that this episode was effectively the end of the show for her, writing that "I didn't actually make it to the finale.

The British version, to be produced by Big Talk Productions and titled You Again, was to be set in Glasgow and would focus on an NHS worker named Zoe.