Things get complicated for Zoey at Simon’s engagement party. Maggie has a night out alone, but it doesn’t go as planned.

After hearing her first duet, Zoey gets a little too involved in her brother’s marriage. Leif receives negative feedback at work. Maggie is offered an enticing work opportunity.

Dex takes on a new case helping a mother who has lost custody of her children, which triggers parallels to her time in Afghanistan. After memories of Afghanistan reemerge, Dex spirals and must face the reasons behind Benny's death. Back at The Bad Alibi, Grey and Tookie coach Ansel on how to ask a girl out on a date.

oey is forced to address her own faith and why she was given these powers as she attempts to help Mo feel comfortable expressing his true self. David creates a “big moment” for Mitch.

Zoey must decide whether or not to get involved in her boss’s Joan’s troubled marriage after she hears Joan sing a “heart song." Zoey creates a new program for the family to communicate with Mitch, but when his first word is not what they expected, Maggie reaches a breaking point.

Zoey tries to figure out how to control her new abilities while navigating her best friends’ romantic feelings for her. A new medical victory for Mitch gives the family hope.

Dex is hired to investigate a bride's fiancé after suspicions arise regarding the motives behind the hurried nuptials. Dex asks Hoffman for help with the case and discovers there's more to this couple than meets the eye. Meanwhile, Hoffman goes head-to-head with his father when he learns that he will be representing a suspect in Hoffman's case. Back at The Bad Alibi, Tookie and Ansel propose a new business idea to a reluctant Grey.

Various conversations occur between various groups of people.

Dex becomes fast friends with a new client, the owner of a male strip club who has been mysteriously losing money, but Dex soon learns not everything is as it seems. Elsewhere, Grey continues to help Hoffman and his new partner on the car-jacking case while going deeper undercover.

An introverted computer programmer living in San Francisco, begins to hear the innermost desires of the people around her through song.