ABC has released the preview for the next installment of the hit sexy drama "Mistresses" and it promises to be an extremely entertaining episode, Cartermatt reports.

In "Love Is an Open Door," viewers will witness how Joss (Jess Macallan) and Harry (Brett Tucker) cope up after their painful break-up. Dr. Karen (Yunjin Kim) will also be seen grappling with her feelings as she, Alec (Ed Quinn) and Vivian (Sonja Bennett) decide how to move forward after their steamy ménage à trois.

Meanwhile, Calista (Jennifer Esposito) will execute revenge on willy Luca (Noam Jenkins) and Marc (Rob Mayes) will be sent in the doghouse after a bad judgment call involving the kids. Unfortunately for him, this will give April and Blair (Brian White) the opportunity to get know each other better.

Last week, Joss and Harry's relationship took a hit after their first official date was marred with discussion of Savi (Alyssa Milano) and Scott (Justin Harley). Joss had previously met her ex-fiancé to return his ring and was shocked to learn that he was going to give it to his new beloved. When she shared her bewilderment with Harry on how a guy could bounce back from a break-up after mere three weeks, he got upset.

Harry also thought that Joss only wanted to move in together just to prove something to Savi. When he confronted Joss about it, she said that her sister would always be part of their relationship as she was the one who got involved with Savi's former husband. The cook then decided to break up with her.

Meanwhile, Karen confessed to April the details of her scandalous night with the Adams. Joss and Calista caught them whispering and immediately got suspicious. Karen had no choice but to divulge her secret to the other women, telling them it was a "complicated" situation.

Also feeling swamped by the whole affair, Vivian decided to call Karen and invite her for dinner. Unfortunately, Alec's friend showing up interrupted the potential discussion among the three. The doctor had invited him over for a double date.

Vivian eventually managed to kick him out so they could have the much-needed conversation. Alec initially tried to brush off the wild night as no big deal, but the ladies admitted that was not the case for both of them. The three then agreed that their three-way relationship would continue.

The other mistresses also had their share of drama in episode 5. Calista found out her husband was scamming her and using her success in business to start his own. Meanwhile, a love triangle was brewing between April, Blair and Marc.

"Mistresses" airs Thursdays at 9 p.m. on ABC.