In plain sight in bustling Seoul, three generations of witches have been living below the radar of everyone around them. Kang Cho Hong operates a restaurant with her fellow witches, Maeng Ye Soon and Jo Aeng Doo. They try to keep a low profile, but Cho Hong’s youthful good looks attracts the attention of a neighborhood guy, Hwang Jae Wook, who is constantly trying to get close to her. Cho Hong and her fellow witches’ quiet lives become complicated when their building landlord, Ma Sung Tae, shows up one day. Sung Tae wants to face a traumatic incident that happened to him in that building when he was a little boy. With Sung Tae nosing around their business on a regular basis, can Cho Hong keep her true identity a secret from him?

Ma Yi-Deum has worked as a prosecutor for 7 years. She sometimes resorts to drastic methods to win cases. One day, Ma Yi-Deum is transferred to a special division dealing only with sex crimes.

Oh Dan-Byul lost her parents due to her own mistake. She marries Joon-Young, but her husband passes away. Meanwhile, her mother-in-law, Ho-Duk, divorces because of her husband's infidelity and her sister-in-law, Se-Sil, returns to South Korea after divorcing her Italian husband. Now, these three women live together while overcoming their own personal problems and becoming important to each other.

Hee-ra is the owner of the Witch's Diner where employee Jin and intern Gil-yong work with her. Guests are welcome to the Witch's Diner where they sell their souls for their wishes to come true.

The young witch Karla learns everything she needs to know about witchcraft from her teacher Miranda. When she tells her that her father has been cursed with a devilish curse, but that Karla can redeem him by making a pact with the devil, the young witch is faced with a difficult decision. Investigative reporter Harry seems to be the solution to her problem, because Karla isn't too worried about his soul.

As Cassie's birthday approaches, Lori discovers disturbing parallels between Cassie and her great aunt, who disappeared years before on her birthday. When signs of a curse appear, Cassie conjures up a little magic to make things right again.

Almost as soon as Jake and Cassie decide to get married on Christmas Eve, complications arise.

While planning her stepson's wedding, Cassie Nightingale also tries to uncover the truth behind missing auction items.

Middleton prepares for its bicentennial, and Grey House is to be the party venue. Good witch Cassie is remodeling it as B&B. her first and only guest, Nick Chasen, claims to be a distant relative. He produces papers to prove he's the heir of the builder, colonial era captain Hamblin, while the Grey lady was his mistress and stole it. Police chief and lover Jake Russell goes all the way to motivate her to fight and disprove the claim before she's effectively disowned. Brandon is dared to pass a rascals-initiation by local brat Steve and Duke. George's gardening skills lead to romance.

Good Witch Cassie Nightingale is back to her bewitching ways, but this time she’s also juggling a newborn daughter and her job as town Mayor. With such a busy schedule she and her husband, town sheriff Jake Russell, aren’t getting much sleep. Hoping for a break, Cassie plans a much needed vacation with her new family. But things go awry when a crime wave sweeps through town and an investigative reporter tries to ruin Cassie’s image after a video of her magically disappearing turns up on the internet. To make matters worse, Cassie’s estranged foster mother appears in town and Cassie’s stepdaughter is suddenly accused of the recent robberies. Supported by her loyal family and friends, Cassie must rely on her signature charm to put a stop to the rumors before they completely destroy the town, and a Good Witch’s reputation!