PREVIEW: Victor punishes Nicole for an outburst; Tony double-crosses Sami. SUMMARY: Philip visits Nicole/Victor and Victor tries to play the doting husband while his son is there. After Philip leaves, Nicole confronts Victor about the charade and Victor goads her enough that she throws a vase at his head, knocking him out. Victor stops Nico from calling an ambulance and punishes Nicole by locking her in her room indefinitely... Lucas brings Cassie home from Rex's lunch and Tony catches their flirtatious behavior; he reminds Lucas what he's already told him: Cassie is off-limits. After Cassie leaves, Sami comes over to see Tony, and Lucas hides as they talk. Tony brings up Sami's relationship with Brandon, revealing that Sami knows Lexie and Brandon had an affair and how hard she's worked to hold onto Brandon. She stops herself before admitting that she switched the paternity tests. After Sami leaves, Lucas comes out of hiding and is pleased to have some dirt on Sami. He wants to use