Oops! You need to enable JavaScript in your browser to start watching. Guidance: With crime scene images from the start. Disable parental controls Enable parental controls Professor T Sophie Knows Series 1 - Episode 5- Professor T befriends a vulnerable girl and is convinced she is the key witness to a murder. Dan and Lisa agree to go on a date. 60 mins Share this episode: Copied to clipboard Share on Facebook Share on Twitter Copy link to share