Sooni, Where are You ? (Movie - 2010)

Source http://www.koreatimes.co.kr

Also known as "Sera and Lami"
Nonstop comic variety. Find the beautiful woman!
A comic story of the mother-in-law Se-ra, the daughter-in-law Ra-mi, and Se-ra's son Kwang-soo, and Kwang-soo's friend Dong-gun, who all struggle to get a 5 billion-won diamond in their hands.
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Sarah (Park Hae-mi), Rami (Shin-ee), and Kwang-su (Lee Tae-seong) are struggling to make ends meet under a gambling debt of $100 million. One day they are informed about a missing diamond worth a fortune and the three form a team to find the treasure. Meanwhile, the Choon-bae clan ― a group devoted to getting the diamond ― competes with Sarah and her friends by sabotaging their efforts.