Drew Peterson's not smiling anymore.

The convicted murderer, serving a 38-year sentence for his 2012 conviction in the 2004 death of his wife, Kathleen Savio, says in a jailhouse letter that "prison is all the nightmarish things that one would think," according to a letter he sent to his one-time attorney, Joel Brodsky, FOX 32 reports.

"I'm in a cell the size of a broom closet, peeling paint, rusting fixtures, I have no TV or anything and I haven't been out since I got here," wrote the ex-Bolingbrook, Ill. Police sergeant, who's serving his sentence at the Menard Correctional Center. "The food is terrible and I'm again in solitary confinement."