![](https://image.tmdb.org/t/p/original/vDIeYq2JDTEMAznmBTkp8WKlMnM.jpg)
![](https://image.tmdb.org/t/p/w342/cnThovHCzJ2YoKrZ0oBBZfkd26j.jpg)
The Cost of Happiness
Seo Jin struggles mentally and physically after what he considers a kidnapping attempt by Ae Ri. At the same time, Ae Ri questions herself whether she should continue to help Seo Jin. While both are on the verge of losing mutual trust, Hyun Chae goes through Seo Jin’s belongings.
![](https://image.tmdb.org/t/p/w300/uFtei4mkfaZnpDQKCrIwmTgLtkA.jpg)
![](https://image.tmdb.org/t/p/w300/80z5nrNrDsj0JKyd1nfdyt7hR9k.jpg)
![](https://image.tmdb.org/t/p/w300/kTg2FAAtSU1JF6MNrIdmKNZyV95.jpg)
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Other episodes for this season
![Disappeared](https://image.tmdb.org/t/p/w300/sgmZI23LqO8kbOnX3JZa9z1ZXx8.jpg)
![Devastated](https://image.tmdb.org/t/p/w300/nKCEY4F1tiTTs1iVLvIcXOocr7a.jpg)
![Call from the Future](https://image.tmdb.org/t/p/w300/vsUswuBNvN7qtEhejs5FJddvpoI.jpg)
![Prove It To Me!](https://image.tmdb.org/t/p/w300/oHQH5F2VVnqFF1C6ibDdon06sD2.jpg)
![The Kidnapper](https://image.tmdb.org/t/p/w300/26jRYbf7mXcXG7YIJ3RAo0cxUEQ.jpg)
![The Murderer](https://image.tmdb.org/t/p/w300/vhSxWaTTyxVGcpo76yV1kM8QEyf.jpg)
![The Chase](https://image.tmdb.org/t/p/w300/noQta9aZeWAfVIKsTuFlDYv2dRE.jpg)
![The Mole](https://image.tmdb.org/t/p/w300/7yrEJw3u3gC5bVEFp1TyyXx0xOV.jpg)
![The Suspicion](https://image.tmdb.org/t/p/w300/sXe1osguE2TM22aoXhwyH6XNsQo.jpg)
![The Crucial Place](https://image.tmdb.org/t/p/w300/nvP33lUTrCDFG1x8LR7OTonRsTS.jpg)
![The Dead Body](https://image.tmdb.org/t/p/w300/c52JYnzkJxreOL913j4rQOhUzHY.jpg)
![The Murder](https://image.tmdb.org/t/p/w300/xUo0LtOX0UnPDSvSuSUUHWoP5JO.jpg)
![Kim Jin Ho Takes His Life](https://image.tmdb.org/t/p/w300/oOBky9hEJXLvWogySFsIdSk01Dj.jpg)
![The Clues](https://image.tmdb.org/t/p/w300/aeyzGs5yLAJL6oIU1tE0cdAbWuC.jpg)
![The Gap](https://image.tmdb.org/t/p/w300/p8IOZrxRnOIudu91uTBAaUa9G0s.jpg)
![The Arrest](https://image.tmdb.org/t/p/w300/92bM9N1Crvkab4TU9BSjyRDuyNR.jpg)
![The Cost of Happiness](https://image.tmdb.org/t/p/w300/vDIeYq2JDTEMAznmBTkp8WKlMnM.jpg)
![The Only Hope](https://image.tmdb.org/t/p/w300/9ApLQxuvp1XzsAkbVW6AcB0bWME.jpg)
![Victim's Message](https://image.tmdb.org/t/p/w300/AmbPrSjwnQYFqGMhR7ZXZk8kCIt.jpg)
![Ae Ri's Guess](https://image.tmdb.org/t/p/w300/599TDGeCzc7bsY3AEPiAqMpd7dS.jpg)
![The Assistance](https://image.tmdb.org/t/p/w300/2AM6IqFunqUyeVRs6c3ZPfCHYrT.jpg)
![Seo Jin's Plan](https://image.tmdb.org/t/p/w300/tBezx4TTD2VtsWYvvJ0L3MDQ78.jpg)
![Ae Ri's Death](https://image.tmdb.org/t/p/w300/1KCPXd1SQ0EPjYnoMlrW8hdPBTt.jpg)
![A Phone Call](https://image.tmdb.org/t/p/w300/isoBiW0MzDLWFMFF6Se3VGAJ7qE.jpg)
![Song Ja Goes Missing](https://image.tmdb.org/t/p/w300/25gQJoHSHDFgIUlMF3VZHoSPl6i.jpg)
![Seo Jin Gets Arrested](https://image.tmdb.org/t/p/w300/cODW0FNm7XJOXcI0EUQ1NOHa8WY.jpg)
![Do Kyun Threatens Seo Jin](https://image.tmdb.org/t/p/w300/vsIc6odQGuBKTfCedmY1MG8qZbk.jpg)
![Hyun Chae Tries to Take Her Revenge](https://image.tmdb.org/t/p/w300/wEhYGTc3bN5t6rtGwEb5FMU7Iyy.jpg)
![One Mishap After Another](https://image.tmdb.org/t/p/w300/fYH9z5FenfSxNsJlyqUF5faQP2R.jpg)
![The Package](https://image.tmdb.org/t/p/w300/rZUhCq7astTxctE27yVSpZBEntZ.jpg)
![The Sacrifice](https://image.tmdb.org/t/p/w300/ifgFsQRe9fJeFiqdu2U367zLaVC.jpg)
![The Last Call](https://image.tmdb.org/t/p/w300/zJvXmWqcGmkUzYZymxGoOFzPcyY.jpg)