Markie Post and Cindy Williams stare nervously at criminals who aren't pictured.
Markie Post and Cindy Williams in Tricks of the Trade.

“They don’t teach Prostitution 101 at Vassar,” prim Beverly Hills housewife Cathy (Cindy Williams) huffs to streetwise hooker Marla (Markie Post) in Tricks of the Trade, a saucy 1988 telefilm. This very dated buddy comedy serves as her crash course. When stockbroker Donald (John Ritter), Cathy’s husband, is gunned down at Marla’s seedy apartment by a mystery assailant, the women are plunged into zany criminal intrigue — a milieu more comfortable to the lady of the evening than the staid suburban spouse.

They first spot each other at the police station, where there’s an obligatory scene of Marla snapping “Are you gonna charge me with something? Because if you’re not gonna charge me with something, I’m outta here.” But it’s not until Cathy’s therapist encourages her to get in touch with her anger that she finally knocks on the other woman’s door, interrupting a date with a kinky john to ask how long Donald was a client. “What is this, female bonding?” Marla asks, admitting it was a years-long arrangement.