Stitch up
Definition 1 of 3
Pro Tip 1/3Negative Connotation
Implies intentional harm or deceit, often in a legal or official context. 
She felt her co-worker stitched her up by taking credit for her work.
Pro Tip 2/3Idiomatic Usage
Used figuratively and not taken literally; no actual stitching is involved. 
When he lost his job over false accusations, he knew he’d been stitched up.
Pro Tip 3/3Cultural Sensitivity
In some cultures, accusing someone of stitching you up might imply serious misconduct. 
After the trial, the media claimed that the defendant was stitched up.