A possible concise summary is:
Krista invites a homeless woman named Emily to stay with her, but soon discovers that Emily is a scammer who fakes pregnancy and tries to take over her home. Krista enlists the help of her friend Jamie to expose Emily's real identity and get her arrested. Meanwhile, Jamie also helps Krista catch her cheating ex-boyfriend Gary.
Here are the key facts extracted from the text:
1. Gary is suspected of seeing someone else.
2. The speaker is considered the best detective.
3. A pillow on Gary's couch matches one owned by his co-worker Alexandra.
4. A pregnant lady named Emily is encountered on the streets.
5. Emily is given money by Krista and Jamie.
6. Emily claims to have no family or friends to call for help.
7. Emily used to live with her boyfriend Timothy.
8. Krista invites Emily to stay with her temporarily.
9. Emily overstays her welcome, using Krista's belongings without permission.
10. Emily pretends to be pregnant and is later exposed for lying.
11. Emily has a warrant for her arrest under the name Delaney.
12. Emily is arrested by the police.
Please let me know if you need more details or further assistance with this text.