It returns six months after the shocking finale of Season 3, and the team must overcome their grief to tackle a dangerous crime wave. This time, the gloves are well and truly off for Professor T in his lectures and a new musical pursuit, romance is very much alive for his mother Adelaide Tempest (De la Tour), and the lines between professional and personal become blurred for therapist Helena Goldberg (Stevenson). Meanwhile, DI Maiya Goswami (Sunetra Sarker) takes charge of the police force with series favorite DS Dan Winters (White) fiercely at her side.
T教授第四季的感情线处理得相当细腻，让人感受到了人物的情感变化。
《T教授第四季》这部的每次T教授分析案情，我都感觉自己像是在上犯罪心理学课。
《T教授第四季》这部的这部悬疑探案剧真的让我感受到了导演的用心，每个细节都处理得非常到位。