MANHATTAN BEACH, Calif. — There's a naked hush on the set of "Medium."

The associate director has called for everyone to be especially quiet as Patricia Arquette and Jake Weber wait for the camera to roll.

The script instructions read "snuggled together in the darkened Dubois bedroom — both of them naked beneath the covers — Allison staring at the ceiling, Joe staring at Allison."

"Privacy garments" are listed as a necessity on the day's call sheet, but whether the stars are wearing anything like that under the sheets can't be seen.

"Well, I was wearing a pasty," Weber jokes in his customary low-key style as he pads around in track suit and bedroom slippers after the scene.

"They have sex and after they have sex they have no clothes on," Weber adds. "It's not like we are walking around in the buff. This isn't a Steven Bochco show."

No, it's a Glenn Gordon Caron show.

"These are things you do to make ends meet," Caron laughs, teasing that less clothing keeps the budget down. In reality, this bit of stagecraft reflects that natural intimacy between a married couple that Caron has always tried to depict.

One of the factors that drew the executive producer (whose credits include "Moonlighting" and "Now and Again") to the series was that within the framework of a psychic crime drama he could paint a vividly real portrait of a working marriage.

The relationship between paranormal expert Allison Dubois (Arquette), who "sees what others can't," and husband Joe (Weber) is the heart and soul of the successful NBC series, which airs Wednesdays.

"When I met the real Allison and she started to tell me about her life and the way she perceived the world, I found that fascinating," says Caron. "But when she told me her husband was a scientist, it seemed to fly in the face of everything she was saying, and I thought, 'What happens when these two people crawl into bed at night?'"