- Title: 수상한 파트너 / Susanghan Pateuneo
- Previously known as: 이 여자를 조심하세요 / I Yeojareul Josimhanseyo / Watch Out For This Woman / Beware This Woman / Suspicious Romance
- Also known as: Love in Trouble
- Tagline: Suprisingly amazing, crazily loving
- Genre: Romance, comedy, legal, crime
- Episodes: 40 (two episodes back-to-back)
- Broadcast network: SBS
- Broadcast period: 2017-May-10 to 2017-Jul-13
- Air time: Wednesday & Thursday 22:00
- Original Soundtracks: Suspicious Partner OST
Noh Ji Wook, a prosecutor, met Eun Bong Hee, a 1st year judicial trainee for the first time in unexpected embarassing incident. Three months later, they meet again as a supervisor and probationer. Things getting worse when Bong Hee suddenly gets caught as a suspect for her ex-boyfriend's murder. While she becomes a defendant and Ji Wook who is known as a harsh prosecutor, what will he do next?
- Main Cast
- Ji Chang Wook as Noh Ji Wook (31, prosecutor)
- Nam Ji Hyun as Eun Bong Hee (27, lawyer)
- Choi Myung Bin (최명빈) as young Bong Hee
- Choi Tae Joon as Ji Eun Hyuk (31, lawyer)
- Kwon Bin (권빈) as young Eun Hyuk
- Kwon Nara as Cha Yoo Jung (31, prosecutor)
- Ryu Han Bi (류한비) as young Yoo Jung
- People around Noh Ji Wook
- Lee Duk Hwa as Byun Young Hee (62, Young Suk's friend)
- Nam Ki Ae as Hong Bok Ja (58, Ji Wook's mother)
- Kim Hong Pa as Jang Moo Young (62, Chief of Prosecutor)
- Jang Hyuk Jin as Bang Eun Ho (46, Ji Wook's friend)
- Jo Seung Yun as Noh Young Suk (37, Ji Wook's late father)
- People around Eun Bong Hee
- Yoon Bok In as Park Young Soon (56, Bong Hee's mother)
- Dong Ha as Jung Hyun Soo (Bong Hee's client/courier service worker)
- Lee Do Yup as Eun Man Soo (Bong Hee's late father)
- People from Judicial Training Institute
- Kim Ye Won as Na Ji Hae (29, Bong Hee's rival)
- Heo Joon Suk as Woo Hee Kyu (33)
- Shim Eun Woo (심은우) as Hong Cha Eun (30)
- Hwang Chan Sung as Jang Hee Joon (28, Bong Hee's ex-boyfriend/Moo Young's son)
- Extended Cast
- Jin Joo Hyung as Go Chan Ho (forensic officer)
- Choi Hong Il (최홍일) as vice-chief of prosecutor
- Kim Gi Nam (김기남) as Yoo Jung's superior
- Jang Won Young as pervert guy from subway
- Park Gyu Young as Park So Young (the woman whom Hyun Soo loved)
- Kim Ye Joon as Kim Jae Hong (the child who witnessed the murder, ep 32~36)
- Production Company: The Story Works
- Production Planner: Park Young Soo
- Executive Producer: Lee Seul Gi (이슬기)
- Producers: Lee Sung Hoon (이성훈), Lee Ok Kyu (이옥규)
- Directors: Park Sun Ho (박선호), Jung Dong Yoon
- Assistant Directors: Ham Joon Ho (함준호), Kim Jae Hong (김재홍)
- Music: Nam Hye Seung (남혜승)
- Screenwriter: Kwon Ki Young
- Actress Lee Sung Kyung and Han Ji Min were initially offered the role before Nam Ji Hyun being finalized as the female lead.
- Nam Ji Hyun and Ji Chang Wook had previously starred in drama Warrior Baek Dong Soo (SBS, 2011) but never met on scene when filming the drama.
- Each night's broadcast is divided into two 30 minute episodes with a commercial break in between and ends with a short scene of "epilogue".
- This is the first SBS drama to have new advertising format called "premium commercials" for Wed & Thu airing timeslot.
- This is Ji Chang Wook's last project before enlisting in the military on 14th August 2017.
- Last day of filming completed on 13th July 2017 at 6am.