Ted and Joan have spent a significant amount of time together over the past couple days. Joan is happy with how things are going. She feels very comfortable with him, and he seems to feel comfortable with her. What's more, their ways of looking at the world seem to complement each other remarkably well. Joan has the eye of a detective, taking note of details that others might miss, whereas Ted has the eye of an optimist, framing everything he sees in the most positive light possible. Joan feels they're opening each other's eyes to a wider world they wouldn't have necessarily experienced without each other.

The day of the karaoke arrives, and in the morning Joan is unexpectedly called in on a case. She texts Ted to let him know, and promises she will take time that evening for karaoke. She suggests he come by 221B Baker Street and they can make their way to the bar together.

When Ted arrives, Joan herself has only been home for a few minutes. She lets him in and leads him to the living room.

"Make yourself comfortable. I'll be just a minute."

She hurries upstairs to change.