De film volgt het personeel en de gasten van een luxe hotel tijdens de feestdagen eind december. Eenieder heeft zo zijn of haar besognes, maar uiteindelijk draait allemaal om liefde en geluk. Centraal staat het verhaal over de ontluikende relatie van de hoteldirecteur met een nieuw kamermeisje, dat droomt van een carrière als musicalster.
Nee, helaas is 해피 뉴 이어 nog niet beschikbaar op Netflix in Nederland.
| Visual Effects | Shin Dae-yong | VFX Supervisor |
| Art | Kim Hyung-jik | Set Decoration |
| Directing | 곽재용 | Director |
| Crew | Lee Sang-ha | Stunts |
| Art | Kim Jeong-hoon | Set Decoration |
| Editing | 박진호 | Digital Intermediate |
| Visual Effects | Jeon Min-gyu | VFX Supervisor |
| Directing | Kim Jang-mi | Assistant Director |
| Visual Effects | Kim Nam-sik | VFX Supervisor |
| Camera | Park Byung-deok | Still Photographer |
| Writing | Yoo Seung-hee | Writer |
| Production | 김원국 | Executive Producer |
| Production | Kang Ga-mi | Producer |
| Visual Effects | Jo Gyeong-hun | Visual Effects Director |
| Writing | 곽재용 | Adaptation |
| Editing | 김형주 | Editor |
| Sound | Kim Jun-seong | Original Music Composer |
| Sound | 공태원 | Sound Supervisor |
| Art | An Ji-hye | Production Design |
| Crew | Jeong Seong-ho | Martial Arts Choreographer |
| Lighting | 김민재 | Lighting Director |
| Costume & Make-Up | Shin Ji-young | Costume Design |
| Costume & Make-Up | Lee Eun-ju | Makeup & Hair |
| Writing | 신은경 | Adaptation |
| Camera | 양현석 | Director of Photography |
| Sound | Choi Min-ho | Production Sound Mixer |
| Costume & Make-Up | Sin Eun-yeong | Makeup Artist |
| Camera | Kang Sang-hyup | Key Grip |
| Camera | Lee Hyun | "C" Camera Operator |
| Costume & Make-Up | Seol Ha-un | Special Effects Makeup Artist |
| Visual Effects | 한준희 | VFX Supervisor |
| Camera | Jeon Seung-hwan | Grip |
| Camera | 민성애 | Still Photographer |
| Directing | 박영석 | Assistant Director |
| Editing | 박현진 | Senior Colorist |
| Production | 조창래 | Line Producer |
| Production | 김디나 | Line Producer |
