Quark is surprised when his Klingon ex-wife, Grilka, returns to the station, and with the assistance of Worf and Dax sets about wooing her. Worf is distinctly put out by the whole idea, and tries to approach Grilka for himself, much to Dax's shagrin. Meantime, Miles O'Brien is becoming uncomfortable with his growing fondness for Kira Nerys, but all his plans to keep at a distance seem to be going wrong.

Mary Kay Adams (Grilka)
Rosalind Chao (Keiko O'Brien)
Joseph Ruskin (Tumek)
Phil Morris (Thopok)

• par'Mach is the Klingon word for love... only more physical.
  
• This episode marks the beginnging of Worf and Dax's relationship.
  
• Grilka made her first appearance in "The House of Quark".
  
• Jake Sisko does not appear in this episode.