What starts as a familiar story of infidelity quickly takes a sharp and unexpected turn.

Most dramas about extramarital affairs keep audiences hooked with one burning question: When will the secret finally be exposed? But The Affair Was Just the Beginning, now streaming on Viu, wastes no time proving that an affair is only the catalyst for something far darker.

Within its first two episodes, the Korean drama transforms from a seemingly conventional relationship melodrama into a gripping murder mystery filled with deception, suspicion, and dark humor.

Starring Kim Hye-soo, Cho Yeo-jeong, Kim Ji-hoon, and Kim Jae-chul, the series wastes little time pulling viewers into a web of secrets where no one appears entirely innocent.

Behind Perfect Lives Lie Dangerous Secrets

At first glance, the story centers on two affluent neighboring families whose lives appear picture-perfect.

Park Kyung-hee (Kim Hye-soo) is a successful interior design CEO and social media influencer with millions of followers. To the public, she represents the ideal life—an impressive career, a beautiful new home, and a seemingly perfect marriage with her husband, Jae-hong (Kim Ji-hoon).

Living across the street is Su-jeong (Cho Yeo-jeong), an elegant dermatologist quietly navigating a bitter divorce from her husband, Bo-seong (Kim Jae-chul).

While both households appear polished on the outside, each is quietly unraveling behind closed doors.

The story begins when Kyung-hee suspects her husband is having an affair. Determined to uncover the truth, she tracks his movements, installs GPS trackers, and secretly follows him, convinced another woman has entered his life.

Everything points toward betrayal—until it doesn’t.

Instead of catching her husband in the act, Kyung-hee discovers something far more disturbing: bloodstains.

From that moment, the drama abandons the simple question of “Who’s cheating on whom?” and replaces it with far more unsettling mysteries.

Who was hurt?

Is someone dead?

And how deeply are all four characters involved?

Infidelity Is Only the Beginning

The dramatic shift arrives at the end of the very first episode, and Episode 2 pushes the story even deeper into a maze of lies, panic, and buried secrets.

Each character knows only fragments of what has happened. Everyone becomes both suspicious of one another and strangely dependent on each other as they scramble to keep an increasingly dangerous secret hidden.

That’s exactly where the title, The Affair Was Just the Beginning, finds its true meaning.

The affair may ignite the chaos, but it quickly becomes insignificant once the possibility of murder enters the picture.

Rather than centering on forbidden romance, the series uses infidelity as the gateway into an intricate crime mystery, blending marital tension, female rivalry, dishonest husbands, and the looming threat of a deadly secret being exposed.

The result is not a traditional melodrama, but a clever black comedy about four adults making increasingly terrible decisions as their carefully constructed lives spiral out of control.

Why Critics Are Calling It a “Dopamine Drama”

Several Korean media outlets have described The Affair Was Just the Beginning as a “dopamine drama.”

The phrase isn’t used in a medical sense, but rather to describe a fast-paced series that constantly delivers twists, surprises, and cliffhangers that make viewers eager to watch the next episode.

The formula becomes obvious almost immediately.

Just when audiences think they’ve figured out the relationships between the characters, new revelations completely reshape the narrative.

The story races from affair rumors and secret surveillance to mysterious bloodstains and a potential murder investigation—all within just two episodes.

Yet the show’s addictive quality doesn’t come from suspense alone.

Dark comedy plays a surprisingly important role. Watching the characters desperately pretend everything is normal while their lives descend into complete chaos creates moments that are simultaneously uncomfortable, funny, and intensely suspenseful.

The series rarely allows viewers to settle into one storyline before introducing another unexpected complication.

With every new revelation, victims become suspects, allies become rivals, and assumptions quickly fall apart.

A Long-Awaited Reunion Between Two Acclaimed Actresses

Another highlight of the drama is the reunion of Kim Hye-soo and Cho Yeo-jeong, who share the screen again more than two decades after appearing together in the historical drama Jang Hee-bin.

This time, they portray two women with strikingly different personalities.

Kyung-hee is outspoken, charismatic, and always in control of every room she enters.

Su-jeong, on the other hand, appears calm, graceful, and reserved—qualities that only make her true intentions even harder to read.

Their relationship constantly shifts throughout the story.

At different moments, they seem like rivals, cautious neighbors, betrayed wives, or reluctant allies forced to work together.

That uncertainty becomes one of the drama’s greatest strengths, keeping audiences guessing about everyone’s true motives.

Meanwhile, Kim Ji-hoon and Kim Jae-chul add further complexity as husbands carrying secrets of their own.

So far, no character has proven completely innocent—but neither has anyone emerged as the obvious mastermind behind the unfolding mystery.

A Strong Start That Leaves Viewers Wanting More

The drama has already made an impressive early impact.

Just two days after its Korean premiere, The Affair Was Just the Beginning climbed to No. 2 on Coupang Play’s Top 20 chart, while Korean viewers praised the series for delivering a shocking twist at the end of its very first episode that completely overturned their expectations.

With only eight episodes, the series still has plenty of room to deepen its mystery and reveal how the four central characters are truly connected.

But one thing is already clear after the opening chapters: if audiences thought infidelity was the biggest problem in this story, they haven’t seen anything yet.

The Affair Was Just the Beginning streams exclusively on Viu, with new episodes released every Friday.