Lifetime takes a look at Chris Watts‘Life behind bars and the relationships he has developed since confessing to the murder of his wife and two daughters.

Debut on Friday June 25th, Cellmate Secrets: Chris Watts offers new interviews with Christa Richello. According to press materials for the project, she has developed “a close and intimate relationship” with Chris and her cellmate Dylan Tallman after meeting Chris by sending fan letters to him in jail.

In a preview clip exclusive to E! The news above explains why Christa was drawn to the case. The 42-year-old clinical psychologist is now engaged to Dylan after replying to Christa’s letter on Chris’s behalf.

“I found it very strange how the case was handled,” she tells the camera in the footage. “I’ve never seen a case in history where someone came to a settlement agreement so quickly, a case was completely closed and not investigated.”

Christa continues: “And there are all these different theories, because normally it would take years in one process and it was only two months to reach this agreement. And that caught me.”