故事以现代东京为背景，在也门担任无国界外科医生，目前归国的Wato Tachibana（贯地谷诗穗梨），与任职警队的调查顾问Sara Shelly Futaba（竹内结子），组成搭档，以过人的推理技巧，破解一件又一件的悬案。

Westworld - a theme park where guests indulge fantasies with robots, a destination offering the future of sin, the artificial intelligence that fuels it and the humans that sense there's something more sinister at play.

Controversy and legal problems follow Dr. Jack Kevorkian as he advocates assisted suicide.