A psychiatrist treating a patient who claims to traverse parallel universes is drawn into mind-bending realities that unravel her fragile marriage and past loves.
| Actor | Role |
|---|---|
 Tang YifeiXiao Tingqin | Xiao Tingqin |
 Stephen FungZhen Shanlin | Zhen Shanlin |
 Cherrie Ying Choi-YiSum Liu Sheung | Sum Liu Sheung |
 Samuel Pang King-ChiYe Junneng | Ye Junneng |
 Zhang MengLan Xiaoli | Lan Xiaoli |
 Mandy Chiang Nga-ManGui Xilin | Gui Xilin |
 Astrid Chan Chi-ChingDr. Wong | Dr. Wong |
 Simon Lui Yu-YeungDr. Lam | Dr. Lam |
 Li HuiDr. Tsui | Dr. Tsui |
| DDai Zhan-GuoDr. Kwok | Dr. Kwok |
 Teddy Lin Wai-KinDirector Gao | Director Gao |
 Tenky Tin Kai-ManBill | Bill |
| LLian JinHospital CE | Hospital CE |
| LLi Zhi-AngProf Lee | Prof Lee |
 Sammul ChanNot listed | Not listed |